Misfire Issues

[SMP52]

Hi guys,

Last week my car started bogging down on start up then it would go away as I drove. Then a few days ago I decided to check the codes and got P0300 (Random Misfire), P0302 (Misfire Cyl 2) & P0304 (Misfire Cyl 4).

I replaced all the spark plugs and coil packs with new ones now I throw all the same codes plus a misfire for Cyl 1!

Any idea where I should aim next?

BTW: Its a 2001 A4 1.8T Quattro, I believe it does not have an ICM

[SMP52]

Cleaned the MAF today and did a boost leak test and still nothing has changed.

It seems to idle fine now, when I touch the gas while driving it will bog.

Need help guys!

[demonmk2]

check your evap crankcase hoses

[Connella08]

Bad ECM

[WantedBy]

i'd go with cornellio bad ICM...what;s yuor boost like and i fyou think ther powere is there but thte car wont go...open the hood and look at the manifold how red it is...

[Connella08]

ICM. Thats what I meant, but mistyped.

[SMP52]

From what I understand the 2001 doesn't have an ICM

Is there a diagram around for the hoses? Not really sure what's what

[demonmk2]

hve you checked the harness for the coils?
for any breaks in the wires.

[haliceaa4]

im having an issue like this I just noticed alot of oil in my throttle and the intake hose between the throttle and the intercooler im wondering if thats the issue too much oil coming thru?

[SMP52]

demonmk2 was right.

I took it to a mechanic and got them to check the PCV system and it was a valve that they had to replace....also ended up that my MAF was on its way out too