please help, i'm new owner of a4 3.0 and i don't know what i do

[Mrfelop]

first that all my apologizes for my bad english, i got recently 2002 a4 3.0l, the car has a multiple misfires so i replaced all spark plugs, and coil ignition, i clear de codes (i use ob2) but my car does continue with hesitation, so i replaced all vacuum hoses, the hesitation continues so every day or every 2 days the car show me different codes even the multiple misfires, i did read here about that could be the fuel pump otherwise the fuel economy computer is acting weird he never show a real number is like 18 mpg and then is 64 mpg and sometimes the fuel gauge show me much fuel or less fuel, the hesitation occur when the car is warm i mean when i got start for the first time works perfect but when i got start for second time the rpm are stuck between 2000 rpm and 3000rpm but when i put drive is just take 5 seconds to back to normality but sometimes that happen when i'm driving, so i read about the fuel pump, vacuum leak, manifold actuator (but i check the arms and they aren't broken) i goona repalce the fuel filter but i don't know what else looking for i like that car but i don't know what is wrong
car mileage: 113.000
codes:
P0300
P0106
P0101

[imnuts]

First step is to start using capitalization, punctuation, and proper grammar. I can barely read your post.

Next, I would start with trying to fix your P0101 code related to the MAF, as that is likely where your issue lies. I would also verify the codes you posted as the P0106 is for a MAP sensor, but I don't think the 3.0 has one, though I could be wrong.

Sent from my DROID Turbo 2

[SJorge3442]

I agree with imnuts. Maf is probably giving you issues. Does your traction control light stay on? Also, the 3.0 doesnt have a map sensor, so i don't know what that code would be showing up. If its not the maf, I'd start with new coil packs. I had one coil pack that was bad that was throwing everything else off.

[Mrfelop]

thank you for your answers, and yes sometimes my traction (i guess is the triangle) is on and it just for a few minutes and then disappear it

[SJorge3442]

thank you for your answers, and yes sometimes my traction (i guess is the triangle) is on and it just for a few minutes and then disappear it

This is almost a dead give away. As soon as the maf sensor has an issue, this light comes on. Try unplugging it and see what it does. My bet is that you won't notice any difference in engine idle with it unplugged. You can get some maf cleaner and clean it as well. Does this car have a K&N air filter? The oil sometimes gets sucked through and makes the maf dirty.

[Mrfelop]

Does this car have a K&N air filter? The oil sometimes gets sucked through and makes the maf dirty.

no sir, car has a normal air filter, i have a question and is why the traction light is on if the maf sensor is starting to fail?

[SJorge3442]

no sir, car has a normal air filter, i have a question and is why the traction light is on if the maf sensor is starting to fail?

Im not really sure why the traction control light comes on when the maf has an issue, i just know that it does. Try unplugging the maf and driving aroudn like that. You won't hurt anything doing this. If the misfires go away, the issue is with the maf and not something else in the eletrical system.

[Mrfelop]

ok, i unplugged the maf sensor then started the car and immediately traction light came on, then i drove around for 25 minutes i got check engine light with these codes:
P0113
P0102
I noticed something and when i select drive in my car this make a strong move (like a strong hit) i hope you understand me.

when i take off the coolant tank cap, immediately drop it coolant below the tank and i put the cap again this stop it?
i'm sorry i'm new in this audi world

[19jdog]

ok, i did, i unplugged the maf sensor and when i got start the car immediately traction light came on and like 3 miles away check engine came on too with this codes:
P0113
P0102
I noticed something and when i select drive in my car this make a strong move (like a strong hit) i hope you understand me.

why when i get take off the coolant reservoir cap this drop it coolant below the reservoir and i putted the cap and this stop it?
i'm sorry i'm new in this audi world

First step is to start using capitalization, punctuation, and proper grammar. I can barely read your post.

Not to give you a hard time but, can you please proof read before you POST, Holy Shit!

[Mrfelop]

i'm sorry i'll try to do better

[Kevin C]

I unplugged the maf sensor and then started the car, the traction light came on immediately.

After that I drove around for about 25 minutes and I got a check engine light with the following codes:
P0113
P0102

I noticed that when put the car in drive in my car it engages very harshly, and kind of jumps.

Also, when I take off the coolant tank cap, it immediately drops to a level just below the tank; What can I do to stop this?

I'm new to Audi's and could use some help figuring this out.

My tiny bit of help :) I'm dyslexic... So I totally feel the pain of having a hard time with writing.

[Furly]

He said please Pardon his English.... he's clearly trying his best to communicate a foreign to him language. I'm all about giving people a hard time when they deserve it , but this guy is clearly trying.

That said. Cleaning the MAF with MAF cleaner rarely ever fixes the issue. By the time the maf on an audi has problems it's too late. And time to replace it.

[Mrfelop]

thank you guys for help me and try to understand me!
ok i guess is time to replace the MAF sensor, i noticed on ebay there a bunch really cheaper and some expensive, i looked for one MAF sensor BOSH like for $60 is it good?

talking about the coolant tank i gonna try to be specific, when i take off the cap (coolant tank) immediately start to leak coolant (below the tank) and the only way to stop it, is putting the cap again on the coolant tank; I don't know if its normal or is an issues

[OlivierA4]

Mr.FELOP,
welcome to the Audizine. personally, i think audizine is a great online home. very very helpful and knowledgeable group that help instead of criticize language and bullying. I joined other forums and they are sucked in this.

I am also in ESL like you. I would recommend you break your topics into bullet point that would be easier for the readers.
i.e.
1) my car has a rough idle and misfire
2) would this be an MAF sensor?
it would clear up some murky water.

Olivier Nguyen

[Furly]

Bosch makes the OEM MAF. So as long as it's a genuine bosch for a 3.0 you'll be fine.

[Mrfelop]

thank you guys appreciate that you try to help me so do you think this issues come from bad MAF sensor?
should i get scan my car with vcds or vag-com? and what parameters would you recommend touch in the scanner?

[Furly]

If you have access to vcds I'd do a scan to get an idea of what's going on . Do you have a CEL? Even if not , there may be codes stored .

The Ross tech website has all of the info on which blocks to check for MAF and pretty much everything you can think of.

[ElectroVeeDub]

thank you guys appreciate that you try to help me so do you think this issues come from bad MAF sensor?
should i get scan my car with vcds or vag-com? and what parameters would you recommend touch in the scanner?

Yes... judging by the symptoms you described it may be the mass air flow sensor.
1) Buy a can of MAF cleaner and attempt to clean the sensor. Clear the codes then test drive the car.
2) If you do not see an improvement in engine performance and the codes return, consider replacing the MAF. Be forewarned, it can be expensive to replace. Self serve autowreckers might have the sensor, but in my experience it's one of the first items to sell, or the sensor is no good. Try eBay.

[Furly]

Yes... judging by the symptoms you described it may be the mass air flow sensor.
1) Buy a can of MAF cleaner and attempt to clean the sensor. Clear the codes then test drive the car.
2) If you do not see an improvement in engine performance and the codes return, consider replacing the MAF. Be forewarned, it can be expensive to replace. Self serve autowreckers might have the sensor, but in my experience it's one of the first items to sell, or the sensor is no good. Try eBay.

He just said he found one for $60. I'd never buy a used sensor , terrible advice.

[Mrfelop]

Do you have a CEL? Even if not , there may be codes stored .

The Ross tech website has all of the info on which blocks to check for MAF and pretty much everything you can think of.

what is CEL? (I'M A NOOB) someone close to me has the vag-com and the price for scan is $35 just scan it

if i gotta have replace de MAF sensor i want to get a new one, i cleaned after i did the test and i drove around for a while, i felt the hesitation but this time was less

[Furly]

Check engine light = CEL.

Where do you live ? I'd check locally if anyone can scan it for free. I do vcds scans for peoole for free. That's absurd they are charging you $35 for a scan that literally takes less than 1 minute.

[19jdog]

I bought a new bosch maf, when I was trying to figure out my misfires. $120.00. Didn't cure my misfires. Matter of fact it didn't do shit! Guess my old one is still good. $$$

[Furly]

Also check your coil pack wiring harness for fraying. That seems to happen and cause misfires.

[Mrfelop]

I bought a new bosch maf, when I was trying to figure out my misfires. $120.00. Didn't cure my misfires. Matter of fact it didn't do shit! Guess my old one is still good. $$$

so wouldn't you recommend me buy a new MAF sensor?

[19jdog]

so wouldn't you recommend me buy a new MAF sensor?

Well it wont hurt, my misfires are slight. I never feel it. It only happens at 3000 to 3300 rpm. My gas millage hasn't changed. It just drives me crazy, I just deal with it. Based on what you have told us, I would get a new maf.

[Mrfelop]

https://www.youtube.com/watch?v=QRZ-wvpY0j4
in this video i show you how the car sound when got the hesitation, i was driving today and the hesitation came again and the CEL came on but it was intermittent, so i selected sport mode and the hesitation gone and same happened with tiptronic mode, worked good then i putted in drive mode and worked fine this time!
i'll check the coil ignition again and the wires

[Mrfelop]

Furly, ElectrVeeDub and 10jdog thanks for you help me with my issue, i got a new MAF sensor and now my car is running much better