What's wrong?
09-21-2008, 03:08 PM
#1
TECH Enthusiast
Thread Starter
iTrader: (24)
Join Date: Oct 2004
Location: Casino, CT.
Posts: 667
Likes: 0
Received 0 Likes
on
0 Posts
What's wrong? The car will only fire with the fuel pump diconnected...
I turn the key on and it primes the pump, crank , no fire. Disconnect the pump trigger wire it will fire but die unless I reinstall the trigger wire..
Once I get it fired and hook the pump back up it runs fine...
I turn the key on and it primes the pump, crank , no fire. Disconnect the pump trigger wire it will fire but die unless I reinstall the trigger wire..
Once I get it fired and hook the pump back up it runs fine...
09-22-2008, 03:57 PM
#3
TECH Enthusiast
Thread Starter
iTrader: (24)
Join Date: Oct 2004
Location: Casino, CT.
Posts: 667
Likes: 0
Received 0 Likes
on
0 Posts
I have checked them, all is good.
From my understanding the pcm only turns the pump back on after it sees a start condition.
The car will only start if I disconnect the fuel pump relay trigger wire.
From my understanding the pcm only turns the pump back on after it sees a start condition.
The car will only start if I disconnect the fuel pump relay trigger wire.
09-22-2008, 07:16 PM
#5
TECH Enthusiast
Thread Starter
iTrader: (24)
Join Date: Oct 2004
Location: Casino, CT.
Posts: 667
Likes: 0
Received 0 Likes
on
0 Posts
I figured it out. I had a wire that was only 5 volts when cranking. I remember reading about this and I thought I had jumpered correctly but satistraction's post made me double check it with a volt meter.
https://ls1tech.com/forums/showpost....82&postcount=8
https://ls1tech.com/forums/showpost....82&postcount=8
Last edited by joshluther; 09-23-2008 at 10:56 AM.