When you have the Idle Load Fuel Trim bank1 and 2, limit reached, doesn't it mean that u can unplug the Air flow sensor to check? To correct this problem you need a new MAF, (2) pre cat O2's and possibly seal up the intake? Any suggestions?
#27 IDLE LOAD FUEL TRIM 1 LIMIT REACHED
#35 IDLE LOAD FUEL TRIM 2 LIMIT REACHED
97 540i 164k miles.