17536 - Fuel Trim: Bank 1 (Mult): System too Lean
12-19-2004, 07:56 PM
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17536 - Fuel Trim: Bank 1 (Mult): System too Lean
2001 A4 1.8TQM
Help with this?, I was thinking of checking my vacuum hose at the BPV but I'm not sure. Only interesting things of note is the GFB BPV and my APR chip. I assume this is causing the problem but I dunno what to look at. Any ideas, thanks?
-Jay
Help with this?, I was thinking of checking my vacuum hose at the BPV but I'm not sure. Only interesting things of note is the GFB BPV and my APR chip. I assume this is causing the problem but I dunno what to look at. Any ideas, thanks?
-Jay
08-08-2007, 11:37 AM
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Re: 17536 - Fuel Trim: Bank 1 (Mult): System too Lean
Hi. I also have an APR chipped TT-225 (2001) with GFB Hybrid valve, Nuespeed CAI, N75R race wastegate valve and Eisenmann catback. Last week, I took the car for a T-Carbon FMIC & engine oil cooler installation, and to dyno test the vehicle, the tuner said the car ran too lean and the power curve was not steady at all (many flatspots & interruptions). I wonder what could it be, so did you find out? I suspect the MAF sensor but it could also be the O2 sensor.
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