In need of FAST help!

[chazmat2316]

I just installed a Fast bank to bank & harness that came out of a friends car a while ago running! Now in my car I have a volt feed back problem, the volt lite glows with car off & car stays running with the key off!

 

[chazmat2316]

IN NEED OF FAST HELP

I forgot to mension when I reinstalled the stock ecm all the issues went away!

 

[norbs]

I would bet theres some short in the harness. I would ohm it all out with everything disconnected. i think theres a pinout in the fast help files, if you have the new version of the software

 

[HighPSI]

Perhaps you "T"ed into the injector power feed instead of cutting the wire and suppling the power solely from the FAST.

 

[chazmat2316]

NEED FAST HELP

No I cut the lead from the stock ECM, I wish it was that easy! Has anyone had an issue like this before? I think it's got to be jumper harness,but it worked in a friends car prior to my install? When I switch back to stock ECM all is good again! THANX for any help!