porkythegrunt

my fuel system on the electrical side of things was perfectly fine and worked flawlessly yesterday, but today, after uploading a stock map onto it. My fuel pumps didn't want to work.

both pumps are functional, all wiring was intact and great. But one really odd thing I have never really seen before (when I was probing around with a test light). My 5v fuel signal (that I am using to trigger my relays for my pumps), when i key the car on....instead of me getting a 5v for like 2 seconds and then it disappearing, it instead comes on for a millisecond and goes dead (i get nothing when im cranking the car either).

I thought it may have been a stock fuel pump relay problem, but it doesn't seem like it.

Have you guys ever seen something like this before?

david974

Wrong MAP perhaps, corrupted data
try the old one or a new
wich engine managment? or rom editor