so im finally getting a power fc to hopefully help me fix and find problems with my car and also get it tuned. my current upgrades are full exhaust,all emissions removed,omp deleted with it still pluged in just laying in the engine bay, non sequential setup with ported wastegate, supra tt fuel pump full braided fuel lines. current problems are keep going into limp mode for code 26-omp stepper motor,
running 10.0 afr at idle and lean at times under full throttle. my questions are what should I check for first after installing the pfc? any guidance or help would be greatly helpful as ive been working on fixing these issues for over 6 months!

 

ok so installed the power fc and wow what a difference...my idle is so much cleaner and runs so much better in general. one question i do have is should i turn my o2 ref off since i dont have the air pump?

 

Since:
(1) O2 Ref uses the 0-1 voltage from the O2 sensor which is located in the DP,
(2) and on pre 95 FDs, the air pump injects air into the exhaust manifold at the rear rotor,
(3) and this affects fuel flow
Yes turn off O2 FB for a leaner cleaner idle.

 

thanks guys!