I've been working through the fault codes as the engine light keeps coming on. I replaced one of the Air Pump Check Valves, that helped...still here's what I've got...


VCDS-Lite Version: Release 1.0
Saturday, 02 October 2010, 14:05:19:0
Control Module Part Number: 4B0 906 018 Q
Component and/or Version: 1.8L R4/5VT G 0006
Software Coding: 07051
Work Shop Code: WSC 12233
6 Faults Found:
18014 - Rough Road/Engine Torque Signal from ABS: Electrical Malfunction
P1606 - 35-00 - -
17707 - Fuel Metering Valve (N290): Malfunction
P1299 - 35-00 - -
16690 - Cylinder 6: Misfire Detected
P0306 - 35-00 - -
16696 - Cylinder 12: Misfire Detected
P0312 - 35-00 - -
16807 - Heated Catalyst; Bank 1: Efficiency Below Threshold
P0423 - 35-10 - - - Intermittent
17537 - Fuel Trim; Bank 2 (Mult): System too Rich
P1129 - 35-10 - - - Intermittent

Any helps, steers in the right direction would be greatly appreciated!

 

Did you already clear your codes and drive the car around for a day or so and check the codes again? If your having a misfire you should definitely feel it while driving. You didnt say if there was any problems besides the codes. Also some information about your car will make it easier for people to help you out(the year and engine).

 

Yes, I cleared the codes and drove around. While changing the one air pump check valve helped it. It still stutters on a good acceleration. And at that point the engine light may even flash for a bit. It will come back to simply being on after a couple of seconds.

Info: 2000 Audi A4 1.8 - it's an automatic - it's your basic A4.

Thanks so much for the help! I'm excited about having learned minds help me sort through the codes and root out the main problem if possible.

Craig Finley

 

why does it say you have 12 cylinders?

 

I am still a learner myself, but I can try to help you as best I could. Seems like your having a common misfire(flashing CEL/ Studdering). Only thing wierd is what twoeightquattro pointed out is why does it say 6 and 12 cylinders are misfiring if you have a 1.8t like me and I only have 4. But most likely the problem is your coilpack, spark plugs, and/or like me the coil pack wires.

 

twoeightquattro and riydan, thanks so much for your assistance!
I don't know why it says that...it's just the codes I get from VAG COM...huh.
Anyway, another thing that has developed as it's gotten a bit colder is that it starts in the morning really rough, like it's misfiring and studdering.
I'm up for changing the coil pack, spark plugs, etc. So I'll dive into it. Any way to diagnose the coilpack to see if there's a problem there?

 

Swap two bad cyinders' coils/plugs with ones that you think are working - maybe cylinder 12 with cylinder 11 - and see if the misfire moves to that cylinder. If it moved, you need a new coil/plug. Don't buy parts that are unnecessary. I actually think that the 2000's have a recall on coil packs; you could perhaps go to the dealer and ask them about it, there are people on here who have gotten 4 coil packs for free because of this - they are like $40 each.

 

Ok, finally checked all the ignition coils - they all seem to be working. Whenever I unplug one, the engine noticeably starts missing.
What would be the next thing to check?

 

If you removed all the coils one at a time and it starts missing then they should be okay. wondering if it could be the ICM unit dont know if 2000 has one.

 

Ok clearly the car is going to jack up if you just unplug a coil pack while running. What you have to do is move one coil pack at a time (turn the car of when you do this) and see if the misfire follows the coilpack. The coil pack might not be all the way bad thats why it's so different if you just unplug it. make sure you are clearing the codes everytime you move a pack