Chipped and now check engine light

so a week ago I chipped the A3 with GIAC, yesterday I put a replacement K&N filter in, Today Start my car and check engine like came on.
 
so I parked the car and drove my back up to work.
 
I have the feeling this in a common occurance. any advice?
 
has this happened to you, if so what did you do.???
Thanks

its common but they should have sorted it with the upgrade

The ecu adjusts for more/less air right?
so if it was running lean the ecu would adjust and that wouldnt be the problem? maybe?
 
I was thinking of taking it back to the shop that flashed me and having them do it again or Wait
I'm gonna call GIAC.
 
but please throw some knowledge my way if you have it. I'm listening.

So I just talked with the GIAC dealer and they said it is 99% the K&N filter "sweating" on the MAF.
bring it in and we will hook the scanner up to it to be sure.

so we will see.

I have had a similar thing happen recently where my engine light went on not too long after installing the Neuspeed P-flow, which uses the K&N.  I have had the error cleared a couple of times, but it keeps coming back.  The filter "sweating" was never suggested as a possible problem.  Please post if you find the solution.  I'll do the same.

Found this.  K&N's response to the oil issue.

http://www.knfilters.com/news/news.aspx?ID=422

What is the code???   That is the best place to start.
 
It might be something totally different, or you didn't plug something back in all the way, loose gas cap, who knows until you read the code???
 
 
 
Cheers!
 
 
 

well I finally went and bought a code scanner at the local parts store...
and when I leave the store to go back home the check engine light doesnt come on?

I thought you had to clear the code for it to go off?
so I hook the scanner up when i get home and it gives me PO301 cylinder 1 misfire. but still no check engine light when I start the car and drive it.

whats up with that. can the computer solve the problem and turn the light off by its self?
anyway I will keep you posted with any changes.

oh i guess it wasnt the maf sensor after all.

How many miles on the car and when were the plugs changed last?   If it has been a long time, then I'd replace the plugs, otherwise, it's time to replace the coil pack.  
 
BTW, the CEL will clear itself after several starts if the problem doesn't occur again.   However, the code will be stored so you can read it on the scanner.   If you are under warranty and the maintenance plan, then wait for the code to come back and take it to the dealer to be fixed for free.
 
 
Cheers!
 
 
 

the car has 26k miles on it, you think its due for any service?

If the error does not reocure then first the "check engine" light will go away and eventually the code will be purged.  I've heard turning your car on and off 20 times is enough to clear old codes.

I was just talking to a shop who does audi/VW and they said the misfire code happens alot and its due to several things including bad gas and such. the code cleared and it hasent come back on so I will just wait and see what happens next.

fyi it only took about 2 or 3 starts for it to clear.

Yeah, it can be a common fault, and I wouldn't worry about it a lot, unless it happens again.   However, I would still pull the plugs and take a look.   I had my plugs out at 19k miles and noticed they were all gapped differently.   I ended up swapping them out and the car ran much better.
 
 
Cheers!