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911Y4 911Y4 is offline
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Posts: 169
Join Date: Feb 2016
Car: 435
Default Trim and Open fuel loop issue - 08-10-2017, 08:05 PM

Hi Terry

I have discovered an interesting issue for trim vs open fuel. Logs are attached

a. If the trim was positive (above 25) before gear shifted, then after shift trim didn't stick at 25, the car wouldn't become open loop, FP_H was normal.

b. If the trim was negative (below 25) before gear shifted, then after shift trim stuck at 25, the car became open loop, FP_H had a dip.

Could you please let us know if there is any solution to overcome this? If car become open loop, it is slower than normal.

Thank you so much!


BMW F30 335xi PWG N55 1/4mile 11.111ET @ 126mph

BMS JB4 ISO / PTF Bootmod3 / Pure N55 stg2 Turbo / Fuel-it PI + stg2 LPFP/ Wagner EVO 2 Competition FMIC / E30 + Meth

In Shanghai
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