MC98

I installed A Donaldson Blackwing on my stock 98 A4 with 3.15s two days ago. I now am getting an engine light, owners manual says the light means there is an issue with the computer. The car sometimes does not down shift when I floor it at 40 mph and feels like it is not as responsive. Anyone else have this problem????

team-zr1

What's the PCM error codes ?

You might have an airleak somewhere by the MAF, check for something loose or not being fitted correctly.

Not knowing the codes, it could be something not having anything to do with swapping airfilters.

John

RedSeeFive

Installed the same unit on my similiarily equipped "99" and did/have not experienced any problems like you described!! :confused:

I think John probably diagnosed your problem pretty accurately though... .... :yesnod: Hopefully he's right and the problem will go away after you "re-tighten" everything. :D :D

Good luck....

Smoke-N-Shot

Make sure that you do not have a kink or loose fitting with the small breather hose that fits on the side. This will cause your PCM to throw codes...

Nick :cool:

mikeyc6

This may sound silly/obvious but make sure you plugged the MAF and IAT back in and that the plugs are seated properly.

Mike

c5magred2

no codes after my install,but i did have some valve train rattle or pinging at higher rpms.i was still having the pinging last week,but i cannot here the noise anymore because of the offroad x-pipe i installed friday.lol :crazy:

Bluvette1

Like everyone said check all your connections. Make sure everything is seated in position.

MC98

Thanks fellows, some of the clamps were not as tight as they should have been so I tightened all of them. Should I drive the car and see if the check engine light goes out or should I disconnect the battery to clear the code and then see if I get another check engine?


[Modified by MC98, 3:24 AM 8/19/2001]

c5magred2

i suggest driving the car close to home at first and see if it clears up.try driving at different speeds,wot momentarly etc...good luck. :crazy: