okay, does anyone in the lakeland, plant city area in FL have a vag-com that is willing to scan my 2000 A4 1.8T with? my car's been throwing p0301-p0304 so i replaced the ECT sensor, fuel injectors, spark plugs, and coil packs and i just cleaned my EGR valve yesterday (which was almost completely blocked off) and it still shaked on a cold start and when it warms up, drives just fine! it's been going on for months and i'm getting tired of it! please help me!

 

I believe that theres a software update for your ECU at the dealer to stop it from shaking on cold starts and causing your misfires.Go to the dealer and ask if they can perform the "ECU Software update forCold Start Misfires" That should solve your problem.

 

you know how much it'll cost?

 

Think they'll charge you around 1-1.5 hrs of labor. roughly around $100-200.

 

when my timing belt went out i had to get the heads replaced. the shaking didn't start until the heads were replaced. do you think it has anything to do with that?

 

Check to see if the timing is correct.

 

how do i do that?

 

Did you replace all ofyour coils? And are your spark plugs tightened? Can you check to see if ther's any oil leaking into your plugs?

 

checked it all. no problems. it was doing it all before i changed them out the first time, and all the new things didn't change a thing except the size of my wallet. i was planning on going to the deale tomorrow :'(

 

It only shakes on COLD STARTS right? That's why your getting misfire faults. Im positive you need to update your ECU to Correct COLD STARTMisfires.