My 01 996 TT is stock with the exception of a gen 1 fabspeed moderate exhaust. The car has 36k miles and has had it's 30k service.
Under WOT the car pulls .7 bars like it should, but then it starts to choke and lose boost. I got my first CEL last week. It read 1130 or an O2 sensor issue. My indy reset the code and told me to see what happens next before assuming that it is an O2 sensor. This morning I got the 1130 code again accompanied by a PSM and ABS warning. They have spent two days going over the car and are uncertain what is causing the problem. Clearly, my fuel mixture is off as my pipes are black. Please help me. I am on vacation this week and want to play with my car!!!

Thanks.

 

P1130 361 Oxygen Sensing Adaptation, Idle Range, Bank 2 -
Below Limit

Possible fault cause
♦ Incorrect signal from MAF sensor
♦ Fuel pressure too high
♦ Fuel injector leaking
♦ EVAP canister purge valve open

So either they forgot to tighten down some stuff or your MAF went.

 

I'm betting on the MAF.

 

A brand new MAF and all is good!

Thanks for the advise and a big shout out to Craig at RPM North who was true to his word; he fixed my car so quickly that I was home before the wife knew that I was gone.
Time for a flash and DV's!!!

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Glad it worked out. Hope you were home early enough that she didn't see the bill either.