Euro-Tuner's 2.0L GT3076r Build

[t1demont1]

Id imagine that the requested boost would be higher than actual boost since the turbo will take a bit of time to spool. Can you post a log to show what you mean? Im not sure what year your car is, but im guessing your on a me7 ecu and your using the n75 to control boost.

I would try checking things like: make sure the manifold isnt loose, make sure the WG isnt loose, check for boost leaks and vaccum leaks. how many psi are you at by 4500ish

[Euro-Tuner]

I'll post logs this weekend, I usually get to about 18-20 psi and then is sputters and drops power & boost

[t1demont1]

the car boosted fine before you had to replace the head? What plugs are you running? Id log missfires and timing when you do some logging.

[Euro-Tuner]

I was only misfiring in cyl 3 but nothing crazy, I'll log timing along with some others tomorrow.

[317ssayzarc]

Jon, COMPRESSION TEST RESULTS!!!

[Euro-Tuner]

oh yeah....keep you panties on, I'll get them today...

[Euro-Tuner]

It may be my O2 sensor, I checked my codes today and ones not responding, it's pissing me off b/c I just replaced them with ones from the stealership, if they crapped out I'm gonna be bullshit, that would cause it to run like shit too, Im not running an MAF so my tune is based off of my MAP sensor and O2 readings...

[t1demont1]

Make sure, bank 1 is the only o2 that matter. bank 2 is just that one thats there to satisfy emissions and say if you have a cat or not. Lets see them logs and compression results

[Poopie]

do a log and see that your throttle body isn't closing either

[Euro-Tuner]

^^what value for that?

[Euro-Tuner]

these were the codes I pulled, looks like its sensor two, I'll check to make sure a wire didnt drop and burn, but I dont think it would have...I've gotten the misfires since the tunes been done, but the knock sensor is new...I'm going to clear them and see what comes back and make sure there is nothing there from when I put the new head on.

17522 - Oxygen (Lambda) Sensor; B1 S2: Internal Resistance too High
P1114 - 35-10 - - - Intermittent
16712 - Knock Sensor 1 (G61): Signal too High
P0328 - 35-10 - - - Intermittent
17963 - Charge Pressure: Maximum Limit Exceeded
P1555 - 35-00 - -
16524 - Oxygen (Lambda) Sensor B1 S2: No Activity
P0140 - 35-00 - -
17545 - Fuel Trim: Bank 1 (Add): System too Rich
P1137 - 35-00 - -
16684 - Random/Multiple Cylinder Misfire Detected
P0300 - 35-00 - -
16687 - Cylinder 3: Misfire Detected
P0303 - 35-00 - -
16688 - Cylinder 4: Misfire Detected
P0304 - 35-00 - -
16685 - Cylinder 1: Misfire Detected
P0301 - 35-00 - -
16686 - Cylinder 2: Misfire Detected
P0302 - 35-00 - -

[Don Supreme]

b1 s2 is not your primary o2 sensor. It does not control AFR.

You have some issues. As I said before -=---------- post wideband afr logs.

Also, check block 032. I bet your long term fuel trim is completely jacked up.

[AudiA4_20T]

b1 s2 is not your primary o2 sensor. It does not control AFR.

You have some issues. As I said before -=---------- post wideband afr logs.

Also, check block 032. I bet your long term fuel trim is completely jacked up.

isnt bank 1 the primary one?

[Don Supreme]

isnt bank 1 the primary one?

B1 S1 is primary.

[Toyotatech]

You look like you have rich and lean (assuming because of the knock code) conditions and boost levels lower than requested are you sure it's not a boost leak?

[Euro-Tuner]

You look like you have rich and lean (assuming because of the knock code) conditions and boost levels lower than requested are you sure it's not a boost leak?

I can't be 100% sure, but I am almost positive that I dont, the only place I would is at my BOV so I'll have to check that.

I'll run those logs either tomorrow or Monday evening and post what I've found. I wish I had time to get to this stuff tonight but I just don't.

Thanks for your input fellas, I'd be lost w/out it.

[317ssayzarc]

......

[t1demont1]

lol jake, hes not gonna give a compression result without a fight i guess

[Euro-Tuner]

Its not my first priority, but it will get done, I promise!

[Rau]

compression test results?

[quattro16]

Make sure, bank 1 is the only o2 that matter. bank 2 is just that one thats there to satisfy emissions and say if you have a cat or not. Lets see them logs and compression results

Bank 2???? Last I checked 1.8t's only have 1 bank.

[arorem]

I was sure inline engines only have 1 bake also

[sean1.8t]

they do. im sure he meant bank 1 sensor 2.

we all know what he's talking about so it's not that big of a deal

[Euro-Tuner]

yeah, bank 1 sensor 2 is not responding...and its brand new...but S1 is ok, I'll give compression test results when I get back from New York

[sean1.8t]

does your tune even have sensor 2 active?

screw sensor 2!

[t1demont1]

sensor 2 is over rated ;) no need for that pos. just sensor 1 needs to work

[goody6691]

my second sensor is just hanging in the bay, does not throw a code

[Euro-Tuner]

oh yeah, my build thread...
I changed the plugs and smoothed out a little but still misses like crazy, ran some logs, under WOT cyl 1&3 miss, but all throw codes, compression is low 105-110 across the board (the guys at East Coast European played a trick on me while reading the compression tester while I turned over the engine; they told me cylinder 4 was at 25psi and I punched my steering wheel so hard my wipers went on, they thought it was funny.)

so we sent the logs to Minhea (MRC Tuning) and waiting for a response.

probably MAP sensor or boost sensor but I'll know better this week.

Edited!

[mike-2ptzero]

oh yeah, my build thread...
I changed the plugs and smoothed out a little but still misses like crazy, ran some logs, under WOT cyl 1&3 miss, but all throw codes, compression is great 105-110 across the board (the guys at East Coast European played a trick on me while reading the compression tester while I turned over the engine; they told me cylinder 4 was at 25psi and I punched my steering wheel so hard my wipers went on, they thought it was funny.)

so we sent the logs to Minhea (MRC Tuning) and waiting for a response.

probably MAP sensor or boost sensor but I'll know better this week.

105-110? That is beyond low unless you are running something lower then 8:1 CR.

[ILoveT]

Yeah was that a typo?

[Euro-Tuner]

I'm at 8.5:1, what should I be looking for?

[Euro-Tuner]

isnt within new spec around 125? and I dropped the c/r so where should it be?

[1NaudiA4]

I'm running 160 across the board with my mahle 8.5:1

[Euro-Tuner]

hmm...so what could be the problem if all are in the same range but that far off?

[mike-2ptzero]

I'm at 8.5:1, what should I be looking for?

Same as me, so you should be right around 150-160 psi.

hmm...so what could be the problem if all are in the same range but that far off?

You want to do a leak down because you most likely have a leak causing it to read so low and being that low would cause the car to misfire since the pressure in the cylinders is much lower then what the ecu is tuned for.

[Euro-Tuner]

well, mind running me through a thorough leak down test? I have yet to do one so I'm not even sure what to look for...I wonder why this is happening all of a sudden.

[Euro-Tuner]

I hope its not my head gasket...

[Poopie]

well if its 105 across the board it sounds the rings have too much end gap. did you get the specs from the motor builder?

[317ssayzarc]

Holy shit Jon...

Dude you need to give me a call...

[Euro-Tuner]

well if its 105 across the board it sounds the rings have too much end gap. did you get the specs from the motor builder?

no, but they should have it on hand, I can call tomorrow. if I need to re-ring I'm selling this fucking car, no joke.