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View Full Version : Slow caps times, decent logs, what now?



Ewok_Fetus
07-08-2008, 02:44 PM
I am at a loss for what to check now!

Channel 001 - Shows hardly any fuel correction needed.

Channel 002 - Reading up to 170g/s which is good.

Channel 020 - Getting about 3 - 5 CF's mid-high rpms.

Channel 031 - Mixture richens at top end by about 11.8-12.1 AFR, supposedly I should be around 12.5 correct? It has done this with stock program, Upsolute program and GIAC. I don't want to tweak it with Lemmiwinks. Could this be where my problem lies? What would I do to change this?

Channel 115 - Boost looks fine... I am supposedly peaking around 30 psi and holding 25-27 according to VAGCOM but my boost gauge says I peak at 14-15 and hold around 10-12 and 8 by redline... Boost gauge is on, but there are NO leaks in the system, period... I have checked there for vacuum and boost leaks... All good...

gotaudi
07-08-2008, 02:56 PM
block 115 reads atmospheric pressure as well as your boost pressure, so you take the reading at idle and subtract that from the peak boost (for example vag-cam says your peak boost was 2300Mbar you subtract about 1000mbar from that = 1300mbar = 18.85psi)

in regards to your caps run what was it? around the 7 -8 second range= kinda normal

Ewok_Fetus
07-08-2008, 03:20 PM
OH okay... I wasn't aware of the subtracting atmospheric... My caps time was 9.66 and about 9.1 for an ABSOLUTE best, that was with colder weather too...

Edit: Okay, so I corrected my boost readings through VAGCOM... Car is requesting about 13-14 PSI which is NOT right for a GIAC X... Now, what can cause low requested boost? Should be a bit higher than that!

gotaudi
07-08-2008, 03:36 PM
yeah when I had the x chip it would boost around 19-20psi then taper down to 12-14psi, and I think your caps times is close to stock levels...check the DV it might be leaking.

Ewok_Fetus
07-08-2008, 03:42 PM
LOL! That is everyone's answer... It is not the DV for sure... I have used 3 different DV's, checked them all, installed in both directions with the same results each time... My car is requesting too little boost... I think if a DV were the case, then I would see good requested boost but low actual boost correct?

gotaudi
07-08-2008, 04:00 PM
what file do you have? I think there is and old file (that I had) and it requested more boost than a new file. email GIAC and see what the software should be requesting

Ewok_Fetus
07-08-2008, 04:13 PM
Once upon a time with this program, I was running 22 spikes with 18 holding and 15 to redline...

gotaudi
07-08-2008, 04:45 PM
o ic, do you have logs showing that it is requesting that much boost? idk what to say.

Ewok_Fetus
07-08-2008, 05:41 PM
This is the best I can do for now... This is my log from yesterday... Temp was roughly 75 degrees which is still plenty enough to want to boost 20 psi... At least what it use to be...

http://www.audizine.com/gallery/data/500/Boost2.jpg

mike-2ptzero
07-08-2008, 06:39 PM
Your chip is not requestiong what it should if you are running a chip. Have you talked to the tuner and see if you can get it reflashed?


Your highest requested boost is only 1930, the Xchip would be requesting around 2300 mbar.

Ewok_Fetus
07-08-2008, 07:35 PM
Just e-mailed GIAC, hopefully they will be able to reflash me for no fee... I won't be able to use the same person since I have moved... Would GIAC pay the local tuner here to do the reflash or would that be under my bill?

Ewok_Fetus
07-08-2008, 08:27 PM
Well, yippee!! I removed the ECU and it wasn't a flash, it was a actual chip... The date on it is 23/03/01... So, I guess it is an early chip, did they even have the X chip back then or is the X chip a recent thing? Was I had by the person that sold me this chip?

maxspeed
07-08-2008, 08:56 PM
Well, yippee!! I removed the ECU and it wasn't a flash, it was a actual chip... The date on it is 23/03/01... So, I guess it is an early chip, did they even have the X chip back then or is the X chip a recent thing? Was I had by the person that sold me this chip?

dosent the x chip utilize bigger injectors?

Ewok_Fetus
07-08-2008, 09:26 PM
God I hope not! Because here are my new logs for this evening... I don't think I did it right the first time plus I was having problems, these are done right...

MAF is still good, reading 160's-170's...

Correction factor is 0 all the way up to redline except #4 had about 3 1.5's in the lower end

Spec boost is still the same

At about 4k RPM my mixture starts to richen... ALOT... Because by about 5k it is in the 10.8 range and won't go any lower... Stays like that till redline...

gotaudi
07-08-2008, 11:00 PM
mine was soldered

mike-2ptzero
07-09-2008, 06:14 AM
Well, yippee!! I removed the ECU and it wasn't a flash, it was a actual chip... The date on it is 23/03/01... So, I guess it is an early chip, did they even have the X chip back then or is the X chip a recent thing? Was I had by the person that sold me this chip?

Yes the Xchip was first a chip/board before they came out with flashing technology.


Is the chip on a board with a black snap ring that is mounted on some pins and has a small black square chip on the bottom of that board?



dosent the x chip utilize bigger injectors?

No, you are thinking of the hammer file which is for a K04. Larger injectors were never used by the tuners for a K03 on the B5's, that is a B6 thing.



God I hope not! Because here are my new logs for this evening... I don't think I did it right the first time plus I was having problems, these are done right...

MAF is still good, reading 160's-170's...

Correction factor is 0 all the way up to redline except #4 had about 3 1.5's in the lower end

Spec boost is still the same

At about 4k RPM my mixture starts to richen... ALOT... Because by about 5k it is in the 10.8 range and won't go any lower... Stays like that till redline...


Your CF readings are going to look like that because your are way down on boost. Not enough timing is also going to effect the AFR. You are hitting 10.8 but is your target AFR also hitting 10.8 ( .735)?

Nebone
07-09-2008, 06:35 AM
I'll have to do a CAPS on my 2001.5 and see how it stacks up to yours. I have APR and its an older file and now there is an updated file that is said to make more power so I'll get a reflash at Waterfest most likely.

mike-2ptzero
07-09-2008, 07:23 AM
I'll have to do a CAPS on my 2001.5 and see how it stacks up to yours. I have APR and its an older file and now there is an updated file that is said to make more power so I'll get a reflash at Waterfest most likely.

Hey that would be the prefect time to do a before and after run at the drags.[>_<]

Nebone
07-09-2008, 07:47 AM
Hey that would be the prefect time to do a before and after run at the drags.[>_<]

That would surely test it out. I raced last year and beat Clints B6 by a fraction of a second and some modded VR6 but my stock like 15.9s runs were not so fun. I finally got the knock sensor issue figured out but the clutch is not up for it. I'm doing Autocross this year.

I talked to Keith from APR and he told me they will have the new file at Waterfest and its free of charge. It also has the P0420 prevention feature, but some said it will not set Readiness as Passed w/ that feature.

Ewok_Fetus
07-09-2008, 08:04 AM
Is the chip on a board with a black snap ring that is mounted on some pins and has a small black square chip on the bottom of that board?


Your CF readings are going to look like that because your are way down on boost. Not enough timing is also going to effect the AFR. You are hitting 10.8 but is your target AFR also hitting 10.8 ( .735)?

I don't recall seeing a "snap ring." But you have the OEM board and what looks to be little black risers that go to the GIAC board... The GIAC board then has a chip soldered onto that with a serial number, date and a I assume, program type...

My car is hitting 10.8 and I thought the wideband is limited to that... The car is requesting .68 lambda or 9.996 AFR... I tried to up the boost with Lemiwinks last night but it was already maxed at 100%...

What block is it to log your AIT? I mean, that in all honesty could cause low requested boost correct? Reason I ask, is because when I was trolling around the reading blocks, I came acrossed it and it said 113 degrees or 45 celcius... I didn't even have the car on, nor has it been driven in the past 24 hours. It was also roughly 68 degrees outside... I took the IAT out and tried to clean it/inspect it but didn't help much...

Honestly Mike, I don't think that a program would just sort of loose itself unless somehow the program became corrupt... There has to be something else causing the low request...

I appreciate your help as this is teaching me to do some more advanced dattaloggin which I have been wanting to do for a while so when I go BT, I know what to look for without asking 10000000 time on the boards...

mike-2ptzero
07-09-2008, 08:11 AM
I don't recall seeing a "snap ring." But you have the OEM board and what looks to be little black risers that go to the GIAC board... The GIAC board then has a chip soldered onto that with a serial number, date and a I assume, program type...

My car is hitting 10.8 and I thought the wideband is limited to that... The car is requesting .68 lambda or 9.996 AFR... I tried to up the boost with Lemiwinks last night but it was already maxed at 100%...

What block is it to log your AIT? I mean, that in all honesty could cause low requested boost correct? Reason I ask, is because when I was trolling around the reading blocks, I came acrossed it and it said 113 degrees or 45 celcius... I didn't even have the car on, nor has it been driven in the past 24 hours. It was also roughly 68 degrees outside... I took the IAT out and tried to clean it/inspect it but didn't help much...

Honestly Mike, I don't think that a program would just sort of loose itself unless somehow the program became corrupt... There has to be something else causing the low request...

I appreciate your help as this is teaching me to do some more advanced dattaloggin which I have been wanting to do for a while so when I go BT, I know what to look for without asking 10000000 time on the boards...



Does it look like this?

Top
http://autobahnvw.net/Misc/GIAC%20CHIP%202%20(Medium).JPG

Bottom
http://autobahnvw.net/Misc/GIAC%20CHIP%20(Medium).JPG

Can also look like this but it must be a white board with a black snap ring holding the chip down.
http://www.awe-tuning.com/media/products/giac/giac_b5a4_sm.jpg

If it doesn't look exactly like that then you dont have a GIAC chip and might just have a stock chip on a board that gets installed when removing the GIAC chip/board. Another way to tell is if the chip is soldered directly to that small board it is either a stock chip or a copy someone is passing off as a GIAC chip.


Block 004 for IAT readings. IIRC on that block you will have a IAT reading and a coolant temp reading.

Ewok_Fetus
07-09-2008, 08:48 AM
Well, the board the chip is on reads GIAC everywhere... It looks like the top board but the chip is soldered to the board... As I said, it has a barcode/sticker that has a date and some GIAC info on it... I USED to boost 20-22 psi so the chip I am 100% sure was a genuine GIAC doing what it should... Something just doesn't add up... Did the GIAC chips also look like that in 2001?

mike-2ptzero
07-09-2008, 08:55 AM
GIAC never soldered the chips directly to their encription boards, they only did that for the stock chip module option.

You might want to snap a picture of it when you get a chance.

Ewok_Fetus
07-09-2008, 09:21 AM
I'll have one up tonight... I wish I remembered who sold me the chip... Cause I am starting to get pissed if what you say is truth...

Ewok_Fetus
07-09-2008, 09:22 AM
Oh and what is the stock chip module option?

mike-2ptzero
07-09-2008, 09:43 AM
Oh and what is the stock chip module option?

It is just a standard board that has a chip soldered directly to it that is flashed with a stock file. It allows the customer to pull the ECU chip/board off and sell it, then put the stock one back in without having to remove the pins and solder the stock chip back to the ecu board.

Ewok_Fetus
07-09-2008, 09:48 AM
Oh okay... But it isn't a stock program in this chip... GARH!! I searched and cannot remember who I got it from!

ModifiedA4
07-09-2008, 10:21 AM
i threw this together in 5mins:
http://www.modifieda4.com/images/random-pics/ewok_fetus_log.sized.png

whats block 032 say?

Ewok_Fetus
07-09-2008, 05:15 PM
LOL! I am glad you have Excel skills cause I sure don't... I suck at graphing... The problem isn't the boost requested vs actual boost... It is that it isn't requesting the boost it should be... Sorry for the ingorant block 31 results... 32 didn't register anything... Also, GIAC is 100% sure the program is doing what it should... I sort of agree with them... It is a hardware issue that is requesting the low boost according to them...

Group A: '031
Lambda Lambda
TIME Actual Value Spec Value
STAMP
0.01 0.938 0.953
0.4 0.953 0.953
0.8 0.961 0.953
1.21 0.938 0.953
1.71 0.977 1
2.11 0.992 1
2.51 1 1
3.02 1 0.945
3.52 0.899 0.899 ~2500 RPM
3.92 0.875 0.899
4.32 0.875 0.899
4.73 0.891 0.899
5.23 0.891 0.899
5.63 0.891 0.899
6.14 0.906 0.899
6.54 0.899 0.899 ~4000 RPM
6.94 0.899 0.899
7.44 0.875 0.867
7.84 0.821 0.821
8.25 0.813 0.821
8.65 0.805 0.805
9.05 0.813 0.813
9.45 0.797 0.797 ~5000 RPM
9.85 0.789 0.789
10.25 0.782 0.782
10.67 0.774 0.774
11.16 0.766 0.758
11.56 0.766 0.75
11.98 0.766 0.735
12.47 0.743 0.727
12.87 0.735 0.727
13.37 0.735 0.719
13.77 0.735 0.727
14.19 0.735 0.711
14.68 0.735 0.704
15.08 0.735 0.696
15.5 0.735 0.696
15.9 0.735 0.68
16.41 0.735 0.688
16.91 0.735 0.68
17.31 0.735 0.68
17.82 0.735 0.68
18.22 0.735 0.696
18.62 0.735 0.719
19.02 0.735 0.68
19.42 0.828 0.922
19.82 0.844 0.992
20.22 0.899 1
20.62 1.367 1.047
21.02 1.991 1.047



Group B: '020
Ignition Angle Ignition Angle Ignition Angle Ignition Angle
TIME Retard Cyl.1 Retard Cyl.2 Retard Cyl.3 Retard Cyl.4
STAMP CF CF CF CF
0.51 0 0 0 0
1.81 0 0 0 0
3.12 0 0 0 1.5
4.53 0 0 0 1.5
5.74 0 0 0 1.5
7.04 0 0 0 0.8
8.25 0 0 0 0
9.47 0 0 0 0
10.67 0 0 0 0
12.17 0 0 0 0
13.48 0 0 0 0
14.79 0 0 0 0
16.2 0 0 0 0
17.61 0 0 0 0
19.02 0 0 0 0
20.22 0 0 0 0

ModifiedA4
07-09-2008, 08:38 PM
block 032 can tell you quickly if something is really amiss. also, keep in mind the car will request lower boost if things are not running right [:D]
is it me or do the primary O2s look lean in the upper rpm? funny how that is right where your boost curve takes a nose dive hmmm.[o_o]



read block 032, anything significantly non-zero is bad.

Ewok_Fetus
07-09-2008, 08:47 PM
This is a 2001 so those readings are pig rich... It is rich enough to where I can see smoke comming from my exhaust... Yes it is all fuel, no oil burning... I had my dad to a take off in front of me... Black all the way... So my theory is, since I am not boosting as much as I should, it is getting REALLY rich up top there like Mike said... Just have to find why it doesn't request that boost!

gotaudi
07-09-2008, 08:49 PM
does the GIAC ecu really run the A/F ratio down to 10:1 or is the car just dumping fuel or what?

Ewok_Fetus
07-09-2008, 09:04 PM
Well, according to the requested AFR, that is what GIAC is requesting... So not only does it request too little boost, it also requests too much fuel... Kinda weird on that one!

gotaudi
07-09-2008, 09:10 PM
Well, according to the requested AFR, that is what GIAC is requesting... So not only does it request too little boost, it also requests too much fuel... Kinda weird on that one!

yeah that is what i am talking about, the car is requesting to lower the boost and dump fuel.

Nebone
07-09-2008, 09:13 PM
Here is m run from tonight. Temp was @25*C

http://memimage.cardomain.com/member_images/4/web/436000-436999/436359_184_full.jpg

I think thats a good caps run and actual boost matches requested boost pretty well. Timing pull is still there even after replacing my Knock Sensor.

Ewok_Fetus
07-09-2008, 09:17 PM
Found this on ebay none the less... It says the car will not compensate for fueling and boost if you had a bad o2 sensor... Thing is, I have no codes...

O2 Sensor – Because of strict emissions these 1.8T’s are very sensitive to readings from the O2 sensors. 2001+ have a wideband front O2 sensor with high accuracy and a linear response. The car will adjust the fueling based on the readings from the sensor. If the sensor is over heated, exposed to lead (race gas), flooded with soot (too rich) or is just old, it can provide the car with false readings and the car will not provide the proper fueling. When the O2 sensors go bad and the ECU detects this the car will run on reserve fueling maps and will not be able to adjust for boost leaks, fuel pressure, MAF readings or any other parameter that affects fueling. To check for a bad sensor the first thing to do is run block 032 on the VAG com. If the sensors are bad, the readings will both be 0%, replace the Front O2 sensor. If the sensor is bad, it will also respond slowly, or reach a peak. Logging block 031 will show the lambda reading from the O2 sensor as well as the requested lambda from the ECU. To get air fuel ratio multiply lambda by 14.7. If the lgo shows the lambda jumping wildly when running through a gear, or perhaps it flat lines at an unreasonable level, then the O2 sensor should be replaced. It is a 50$ part. If the o2 sensors get shorted out or the wires get pulled, they will damage the ECU, be careful with the wiring on these sensors. 2000 and older cars do not have a wideband sensor, however they will still perform some adjustment of fueling based on the sensor.

gotaudi
07-09-2008, 09:22 PM
What do your fuel trims read? (Block 32)

Ewok_Fetus
07-09-2008, 10:31 PM
I'll log them tomorrow...

Ewok_Fetus
07-10-2008, 12:19 AM
Hey guys, I don't know if this has anything to do with it, but I cannot perform any output tests for the ECU... Damn thing better not be dying...

Ewok_Fetus
07-10-2008, 12:32 AM
Well, did my measuring block homework... Found some of great importance... Others are just for FIY for later... But these are what I found... The ones in bold are what I think I should log...

Block 001 - Lambda adjustment
Block 002 - MAF readings/Injection duty cycle
Block 003 - MAF/throttle/ignition angle
Block 004 - IAT/coolant temp
Block 006 - IAT/engine load
Block 020 - Ignition retard
Block 030 - Oxygen sensor status
Block 031 - Oxygen sensor voltage
Block 032 - Oxygen sensor learning values
Block 033 - Lambda control
Block 043 - EGT
Block 046 - Catalytic converter test
Block 080 - Control module ID
Block 081 - Control module ID
Block 082 - Control module ID
Block 111 - Boost pressure control - Boost adaption
Block 114 - Boost pressure control - Load/duty cycle
Block 116 - Correction factors for temp
Block 118 - IAT/boost duty cycle/pressure before throttle
Block 119 - N75 adapt value
Block 140 - Fuel pressure?
Block 160 - Lambda control for ULEV

gotaudi
07-10-2008, 12:36 AM
Well, did my measuring block homework... Found some of great importance... Others are just for FIY for later... But these are what I found... The ones in bold are what I think I should log...

Block 001 - Lambda adjustment
Block 002 - MAF readings/Injection duty cycle
Block 003 - MAF/throttle/ignition angle
Block 004 - IAT/coolant temp
Block 006 - IAT/engine load
Block 020 - Ignition retard
Block 030 - Oxygen sensor status
Block 031 - Oxygen sensor voltage
Block 032 - Oxygen sensor learning values
Block 033 - Lambda control
Block 043 - EGT
Block 046 - Catalytic converter test
Block 080 - Control module ID
Block 081 - Control module ID
Block 082 - Control module ID
Block 111 - Boost pressure control - Boost adaption
Block 114 - Boost pressure control - Load/duty cycle
Block 116 - Correction factors for temp
Block 118 - IAT/boost duty cycle/pressure before throttle
Block 119 - N75 adapt value
Block 140 - Fuel pressure?
Block 160 - Lambda control for ULEV

yeah those are good things to have logs of but you will go through a full tank of gas if you do one block at a time (which i never do more that 2 blocks due to resolution of the log)

Ewok_Fetus
07-10-2008, 12:41 AM
Well, now that I think about it, I can probably weed a few out... The o2 sensor is probably good, but nice to know the values anywho... Other blocks kinda measure the same thing as others, only doing it in different groups...

ModifiedA4
07-10-2008, 05:57 AM
I'll log them tomorrow...

no need to log, they are static numbers. just turn the car on and vag block 032 (do not clear codes or these reset)

there are two numbers.

Ewok_Fetus
07-10-2008, 06:42 AM
I thought one was for idle and the other under WOT? Well, they both say 0 at idle...


Edit: Ah, nevermind... I read the FAQ and that is a non logging number like you said... It also said that both 0's something is wrong... What would be wrong?

mike-2ptzero
07-10-2008, 07:31 AM
I thought one was for idle and the other under WOT? Well, they both say 0 at idle...


Edit: Ah, nevermind... I read the FAQ and that is a non logging number like you said... It also said that both 0's something is wrong... What would be wrong?

You most likely have a bad 02 sensor since the ecu uses it to make adjustements on block 032. Those adjustments are for idle and part throttle. Odd thing is that you are getting 02 readings but on your log you posted of block 031 it is on the lean side of 13.2:1 at 4000 rpms which is already after peak tq on a K03. You also dont get into the 11's till 5k.


BTW you where is your 02 sensor located for your wide band gauge?

ModifiedA4
07-10-2008, 08:06 AM
I thought one was for idle and the other under WOT? Well, they both say 0 at idle...


Edit: Ah, nevermind... I read the FAQ and that is a non logging number like you said... It also said that both 0's something is wrong... What would be wrong?

double zero is also if you cleared codes recently. but if you haven't, maybe mike's suggestion of a crapped out O2 sensor is right. (the only O2 sensor that matters is the precat).

Nebone
07-10-2008, 08:14 AM
Found this on ebay none the less... It says the car will not compensate for fueling and boost if you had a bad o2 sensor... Thing is, I have no codes...

To check for a bad sensor the first thing to do is run block 032 on the VAG com. If the sensors are bad, the readings will both be 0%, replace the Front O2 sensor.


Well, they both say 0 at idle...

Time for a new 02 Sensor.

Ewok_Fetus
07-10-2008, 08:45 AM
Mike, I have no wideband gauge... It is a 2001 with the OEM wideband... I haven't gotten the wideband gauge yet, but will soon...

Would o2 sensors do that though? Still read and then go flat? Would that also cause low requested boost? I am assuming yes to all 3 questions... Anyone know what happened to Bitterchild? I got a new o2 about a year ago from him... I guess it is time to throw more parts at it and hope this fixes it...

Anyone know where to get them for $60 still? I couldn't find anything...

mike-2ptzero
07-10-2008, 09:20 AM
Mike, I have no wideband gauge... It is a 2001 with the OEM wideband... I haven't gotten the wideband gauge yet, but will soon...

Would o2 sensors do that though? Still read and then go flat? Would that also cause low requested boost? I am assuming yes to all 3 questions... Anyone know what happened to Bitterchild? I got a new o2 about a year ago from him... I guess it is time to throw more parts at it and hope this fixes it...

Anyone know where to get them for $60 still? I couldn't find anything...

I got a few from another B5 member that lives in Socal, still have 2 spares right now. He is the same guy that offered to get members some F6DTC spark plugs. I will have to look up his name AZ name but IIRC it starts with a C.

(added) ok searched it and his member name is creechsa4. his member page (http://www.audizine.com/forum/member.php?u=4747)

Ewok_Fetus
07-10-2008, 02:54 PM
Well, block 032 says 0.2% and -2.3%... I think it read 0 because of clearing the codes... O2 sensor is good I guess?

mike-2ptzero
07-10-2008, 03:18 PM
Well, block 032 says 0.2% and -2.3%... I think it read 0 because of clearing the codes... O2 sensor is good I guess?

Well the 02 is working, but could still be running at less then 100%.


BTW looking at your 031 log again, it seems that not long after 5000 rpms it seems the ECu is just dumping fuel since your actual AFR is way richer then the target AFR of .735 (10.8:1).

Ewok_Fetus
07-10-2008, 03:29 PM
If I disconnected the o2 sensor, would I go into a set map like the MAF would? How about the IAT sensor?

mike-2ptzero
07-10-2008, 03:52 PM
Yes but the car would run like crap and most likely very rich all the time.

Ewok_Fetus
07-10-2008, 04:05 PM
Yeah, I went limp like and old man in a cold shower when I took it off... Now this brings up a couple of other symptoms... When I am driving sane, in 1st gear when I go to shift around the lean point (3500-4000 rpm) I will get a quick single knock... It is LOUD too... That is from running lean I am sure...

When I went limp after disconnecting the IAT sensor, the car of course was boosting 5 psi, but when I get to that 4k mark, even LIMP mode drops boost down to like 1-2 psi!!! WTF is this!? I am getting ready to go stock and sell this car and get another 2001. LOL!

mike-2ptzero
07-10-2008, 04:14 PM
Just grab a 02 sensor off of someone elses car or buy one.

Ewok_Fetus
07-10-2008, 04:18 PM
I thought that limp was limp and o2 values not looked at... Starting to sound like a bad hardware problem and not a sensor with the boost dropping like that in limp... Plus, no one local here as I live out in the sticks, NO auto stores have them and the VW dealer wants $280... I don't have a job either so if it doesn't fix it, I don't want to have that money spent on the o2 wasted for the part that really is bad...

Nebone
07-10-2008, 07:59 PM
Ha, we both have 2001 AWM issues that normal people wouldn't notice. My small timing retard issue is something I spotted by logging and butt dyno and you spotted your issue as you're a bit low on CAPS times and boost.

Ewok_Fetus
07-10-2008, 08:05 PM
LOL! I'll trade you some timing... Seems I don't have enough and you have too much! Sorry I didn't get those logs for you, I honestly don't think mine would help you since I am having issues with my timing...

I logged my IAT today and it never reached above 55 C... It was 72 when I logged it, shouldn't it be a bit higher than that?

gotaudi
07-10-2008, 08:07 PM
Ha, we both have 2001 AWM issues that normal people wouldn't notice. My small timing retard issue is something I spotted by logging and butt dyno and you spotted your issue as you're a bit low on CAPS times and boost.

I am starting to make the conclusion that the AWM sucks!!! My car hasn't ran right in over a year. The Big turbo Feels more like a Ko4 than anything. My timing corrections are constantly above 10 degrees and my fuel trims suck! it says i am running lean but I am not. I dont hit full boost (18psi) until 4500RPMs

the AWM makes me [=(]

/rant

gotaudi
07-10-2008, 08:09 PM
LOL! I'll trade you some timing... Seems I don't have enough and you have too much! Sorry I didn't get those logs for you, I honestly don't think mine would help you since I am having issues with my timing...

I logged my IAT today and it never reached above 55 C... It was 72 when I logged it, shouldn't it be a bit higher than that?

lol, 55c is pretty high... but i guess that is what you get for a stock SMIC

Ewok_Fetus
07-10-2008, 08:17 PM
Oh yeah, and my block 114 was in the 180's all across...

Ewok_Fetus
07-11-2008, 08:15 AM
Can an N75 play a roll in requested boost? Or when people change them out they just get more actual boost than requested boost? So, I guess my IAT's were pretty high someone said and I saw some other logs that were fairly low compared to mine... Does anyone know how to test the IAT besides log? I think it was in the bentley at page 28-XX...

ModifiedA4
07-11-2008, 08:41 AM
i think the first step is to replace the front O2 sensor...see how the car reacts to that before second guessing other items.

Ewok_Fetus
07-11-2008, 09:17 AM
The o2 sensor is only 1 year old... And is doing it's job... I will try but I dunno where to get them anymore... As I stated, there is no one local here that sells them...

mike-2ptzero
07-11-2008, 09:21 AM
The o2 sensor is only 1 year old... And is doing it's job... I will try but I dunno where to get them anymore... As I stated, there is no one local here that sells them...

I told you who to get them from here on AZ, just pm him and he can send one to you. If you need one let me know because I can always pull the one out of my car and let you try it since it isn't like I need it to drive my car.





I logged my IAT today and it never reached above 55 C... It was 72 when I logged it, shouldn't it be a bit higher than that?


Higher then 55c? That is 131 F vs the 72 F you were driving in.

Ewok_Fetus
07-11-2008, 09:35 AM
Oh okay, thanks Mike, I didn't see that you edited the post...

Ewok_Fetus
07-11-2008, 06:48 PM
Welp, I had fun limping home today for about 8 miles... I was at my friends and in mid rev, my coil pack when out... Sounded nice but no power what so ever... Would this coil pack be a possiblity for my low boost? I figure that could have been a reason for running rich... Maybe that coil has been weak for a while and then finally took a shit... Nebone, sorry cannot give you a log now! LOL! Where to get some cheap ones now? What is the upgraded part number... How much should they be?

ModifiedA4
07-12-2008, 06:37 AM
a coil pack wouldnt cause your fuel trims to be double zero.

mike-2ptzero
07-12-2008, 07:00 AM
a coil pack wouldnt cause your fuel trims to be double zero.

His only read double zero because he cleared the codes and the ecu didn't adjust by the time he looked. Since then he has posted 032 readings on page 2 which you might have missed.


Well, block 032 says 0.2% and -2.3%... I think it read 0 because of clearing the codes... O2 sensor is good I guess?

Poopie
07-12-2008, 10:37 AM
the coilpack either works or it doesn't work. They don't slowly die

Ewok_Fetus
07-12-2008, 05:51 PM
the coilpack either works or it doesn't work. They don't slowly die

Negative... You can still have a spark only a weak one... Turns out this was actually PART of my problem! I took the car out for a test drive and had the same symptoms for the first 2 miles... Then the car started to hold boost higher and higher and peaked a little higher... Not as high as it should but it is better than before... Also the higher rpms are SOOO much smoother than before!

Before peak 16 psi
After peak 18 psi

Before hold 8-10 psi at 4500 rpm...
After hold 15 strong till 5500 rpm...

Now the funny thing is, when I got back I checked for codes again... What do ya know, O2 sensor B1 S1 Response too slow... I dunno if maybe the coils were hidding a bad o2 sensor...

Ewok_Fetus
07-14-2008, 03:05 PM
Okay, just an update for future searches...

I decided to actually test my IAT sensor with a multimeter instead of logging it... From what I understand, if your sensor goes bad the ECU will insert 40 degrees C so the car basiclly doesn't blow up... I was reading 40 degrees everytime I started the car and it never moved from there until I start getting the engine nice and hot... So this morning, I went out and put a multimeter to the leads... It read 2.990k ohms or about 70 degrees C... It was roughly 50 degrees out this morning which the sensor should be reading about 2.5k ohms... Now at 70 degrees outside the sensor is reading 600 ohms which would put it at 140 degrees... So, something tells me the IAT sensor is fubarred... I put one on order and will be testing it out here soon and give the results...

Aparently, a bad IAT sensor can cause....... IMAGINE THAT!! LOW BOOST and make the car RUN RICH!

Nebone
07-14-2008, 03:10 PM
Well, my car runs like ass too when its hot and nice when cool. The IAT might be the reason for my timing retard too.

Ewok_Fetus
07-14-2008, 03:14 PM
Well, that is just heat soak... Mine does this regardless of outside temp... Wheter 30 degrees outside or 110 degrees... My car has the same pull constantly... Plus, you have caps times of 6-7 seconds while I have 9.5 seconds... LOL!

Ewok_Fetus
07-17-2008, 04:27 PM
Another thing I learned from reading the Bently today... My block 32 field 1 says only .2%... Bently states that it needs to be AT LEAST 2% either way... So I am 1.8% off on that... Their troubleshooting says thinning oil, high oil consumption, bad o2, air leak, bad MAF, fpr, stuck injector or EVAP purge valve... Well... Lets see...

Change oil at every 3k and have full 4 quarts during change
NO LEAKS!
NEW MAF/FPR/INJECTORS.

This will leave the EVAP valve or the o2 sensor!

ModifiedA4
07-18-2008, 06:03 AM
Another thing I learned from reading the Bently today... My block 32 field 1 says only .2%... Bently states that it needs to be AT LEAST 2% either way... So I am 1.8% off on that... Their troubleshooting says thinning oil, high oil consumption, bad o2, air leak, bad MAF, fpr, stuck injector or EVAP purge valve... Well... Lets see...

Change oil at every 3k and have full 4 quarts during change
NO LEAKS!
NEW MAF/FPR/INJECTORS.

This will leave the EVAP valve or the o2 sensor!

how new is the PCV valve?

Ewok_Fetus
07-18-2008, 06:58 AM
Not even 2 months old... EVERYTHING was changed in the PCV path and the hardlines cleaned with brake cleaner... All vacuum lines replaced along with check valves...

ModifiedA4
07-18-2008, 10:19 AM
Not even 2 months old... EVERYTHING was changed in the PCV path and the hardlines cleaned with brake cleaner... All vacuum lines replaced along with check valves...

well for what ever reason your car is running lean at upper rpms and dumping boost.

Ewok_Fetus
07-18-2008, 11:13 AM
Read above... I am a 2001... With 2001 you multiply the reading by 14.7 to give AFR which is around 10.8ish... It is super rich... I think that the boost isn't there that it wants which is why it is running rich...