LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

fuel pump.....PLEASE HELP!!!

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Old 08-03-2006, 08:32 PM
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Re: fuel pump.....PLEASE HELP!!!

back to post #9.
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Old 08-03-2006, 08:47 PM
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Re: fuel pump.....PLEASE HELP!!!

It's a new opti (changed a few months ago) and the car was running before the pump swap. What else besides that would I have to check for injector pulse?
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Old 08-03-2006, 08:58 PM
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Re: fuel pump.....PLEASE HELP!!!

Originally Posted by gitsum
... and then one of them shot off the rail!
I apologize. I forgot that you had the SVO's and couldn't run the injector clips. Also, when you get this thing running, remember you have 2 leaky injectors. I can't think of anything else that would cause the injectors not to pulse besides the fuses and the opti. Maybe someone can chime in and shed some light on this. At least you're positive what's keeping the car from starting.
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Old 08-03-2006, 09:25 PM
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Re: fuel pump.....PLEASE HELP!!!

Just because the opti is new doesn't mean that it is not at fault. Also might be opti connector, opti wiring back to the pcm, etc. You took the fuel rails off - sure you didn't pinch a wire somewhere? Do you have spark?
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Old 08-03-2006, 09:58 PM
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Re: fuel pump.....PLEASE HELP!!!

I'll check for pinched wires and spark tommorrow. The car has alot of miles, maybe the wires were brittle and I broke one. I'm not very good at troubleshooting electrical problems, so I might have to bite the bullet and take it somewhere.
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Old 08-03-2006, 10:12 PM
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Re: fuel pump.....PLEASE HELP!!!

I apologize. I forgot that you had the SVO's and couldn't run the injector clips.
Its all good. My wife had a good laugh, though. I must have jumped about 5 feet high when that thing popped off!
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Old 08-04-2006, 06:06 AM
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Re: fuel pump.....PLEASE HELP!!!

When I had 30# SVOs I used the sock clips on the fuel rails with no problems. You can't just use any of the grooves, though. I "think" only the top one worked which left the o-ring a little low in the rail, but it worked just fine w/o any leaks.
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Old 08-07-2006, 05:50 PM
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Re: fuel pump.....PLEASE HELP!!!

It turned out to be fouled plugs. I cant believe I didnt check that........oh well, at least its running now. I appreciate all the help and advice you guys had to offer, thanks.
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