Power Fc Problem

[kanny]

this is on my 33 gtr I have a stock computer with a nismo chip and a power fc. with the stock computer and chip in the car it runs fine as soon as i change the computer back to the power fc it wont idle properly and misses like a dog runs on a few cylinders? any ideas? the problem just started happening all of a sudden and thats what made me change the computer back to the stock one.

[paulr33]

check the state of the tune

view ETC, SENSOR SW CHECK for anything out of the ordinary

check how the powerfc is plugged into the harness - is it secured in the plug correctly?

open the powerfc - does it smell burnt ? any visible damage ?

[Guilt-Toy]

reset the power fc to factory defaults.. check pauls FAQ for info on how to do this. I dont know why he did not suggest this in his post.

maybe the stock ecu/chip setup is tuned for modiications done to the car like bigger injectors or something...

Take it to a tuner and get them to sus it out for you.

[89CAL]

yeh as paul said check the harness is all the way in. Sometimes if u leave the screw that holds it in a bit loose it doesnt run properly, happened to mine and screwed it in a bit more and ran fine