4 new plugs, gapped. check.
4 new coils. check.
replaced valve cover gasket. check.
misfire. check.
any ideas? I'm going to get into the injectors tomorrow, are there any ways i can test them? the misfires are in 1 and 2, where the valve cover gasket was slightly leaking (small amounts of oil in the spark plug cylinders)
i would appreciate any help, i've been car-less for a couple weeks now and its VERY frustrating not knowing how to correct the misfires. 01TQM, 95K, timing belt replaced around 92k along with water pump and thermostat. i have no idea what else it could be besides injectors or something screwey with the computer. thanks all.

 

Have you checked your ICM?

 

2001s dont have ICMs. primary O2 sensor is gone or the MAF maybe. injectors dont normally die, and its very rare that i hear about them getting clogged enough to cause a misfire, but to test them just switch them around, if the misfire follows it could be that. unplug your MAF and see if it gets better or worse. if your O2 sensor has 95k miles on it you might as well replace it anyways, its about time. you will gain a little fuel efficiency if nothing else. other then that get out VAGCOM and do some logs. especially look at actual vs requested boost readings. does it misfire at idle? only under load? only at WOT?

 

it misfires at idle and when it first happened i was in second under WOT although not past 4K RPMs
02 sensors were both replaced when i got the car at around 82k and i replaced the MAF like a thousand miles ago (cleared limp mode for me for a while then the misfires hit) I'll hook up the obd2 after i take a shower and let you know what codes come up besides the misfires, as well as unplugging the MAF and letting it run. I have a vagcom but i dont know how to use it really, can you toss me a link to a guide or something? thanks.

 

er scratch that, ill log codes in the morning and keep you posted.

 

Make sure to log data block 32 as well, i want to know if its adding or taking away fuel.

 

OBDII codes are as follows:
p0172- system too rich (bank 1)
p0328- knock sensor 1 circuit high input bank 1 or 1 sensor
p0300 random/multiple cyl misfire detected
p0301 cyl 1 misfire
po304- cyl 4 misfire
p0302- cyl 2 misfire

I unplugged the MAF but it didn't do anything, still misfired with a blinking CEL at idle.
I want to use the vagcom, but honestly i don't know how. again, a tutorial or instructional website/link/file/anything would be appreciated.

 

data logging with vagcom

http://www.audizine.com/forum/showth...+measure+boost

vagcom specific forum, check out the FAQs thread

http://www.audi-sport.net/vb/forumdisplay.php?f=27

the ross tech homepage

http://www.ross-tech.com/

 

thank you dude!!