I just got the turbo in today and I got a code after the car was running a few minutes. 1124 Manufacurer controlled fuel air metering. I checked over at HA on the code list, it said fuel system lean - Idle. I am running my fuel pressure at 38 psi at idle on a RRFPR. Do I need to bump it up a bit? I also put on a Turbo down pipe. Someone once told me if you go with a large diameter header or exhaust it could lean your car out a little. I don't know though. Is this code something I should be worrying about?

 

Hmm.. I wouldn't be to worried about it. Have you reset your ECU?

 

No, I haven't reset the ECU. That should have been the first thing I done. My memory is getting bad in my old age. Thanks Redz.