just put my 1990 fc back together and it is still running the same way when the stock ecu and stuff was in it.i belive its the omp. ive was using premix for the longest time. with the omp blocked off but still pluged in so not to cause a check code. yes all my wireing is good.now that i installed the pfc i disconected it from the harnes. its cutting out fuel or spark when i try to drive and will cut out after enough times of trying to drive th car. does the pfc go into a limp mode just as the stock ecu. if a important sensor is not working? and if so can you disable the omp in the pfc so its not trying to look for it?

 

The PFC doesn't need the OMP hooked up at all, I run without and pre-mix.

You problem maybe in Ignitors or the Fuel Cut Setting (Boost/RPM) on the Power FC. Does it happen at the same Boost pressure or Same Rpm

The PowerFc is a easy ECU to setup

 

well going to have friends tunner look at it with his data logit. maybe we can figure it out with that. if not dont know what to do anymore.

 

you need a wideband and datalogit, otherwise you are in the dark.