Maf or lambda?????

[rb1763]

Hi, I'm currently having issues with my 04 a3 3.2, when cold it has a rough idle once warm it settles down, eml light is on and so is the epc??
The car smells like it's running rich.
I've done a few scans with vcds lite and more errors keep popping up.
Any help would be much appreciated.

 

[vag-tech]

Please clear all engine codes and post the log of returned.

 

[rb1763]

Now I get p0113 (g42)

 

[vag-tech]

Check valve in measuring blocks...004 i think. Report value with key on.

 

[rb1763]

I only have vcds lite I'm pretty sure it only does a basic scan

 

[vag-tech]

I'd say drive car and rescan following active MIL/drivability issues - report if any further codes return.
Following that -it'll be time for targeted testing.

 

[rb1763]

Would a faulty maf cause problems with the lambda sensor?

 

[vag-tech]

If overvaluing air, then yes. A generally rich mixture isn't going to do it any good. Precat lambda with try to lean this out until lambda 1. If MAF is too far out it will hit lean stop also...which I see is one of your stored codes.