hey everyone i just installed a overkill tuned pcm into my 03 grand prix gtp
my problem is if i let off the gas my car now stalls, im not getting any SES lights probally because i cant drive it far enough to let it register, my car will start up (hard) and then within about 30-40 seconds of idleing it decides to stall. also if i drive arround, if i come to a stop sign it stalls.
When installing the pcm i Disconected the ECM fuse and the battery as suggested in overkills instructions.
Now my question is, what is causing this to happen and where should I look to solve this issue.
