FPR failure??

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Aug 14, 2006 | 02:08 PM

mk842766

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From: Richmond TX

FPR failure??

My car was running somewhat well, when it just died....like it was out of fuel. Got it home, and started checking the usual things...has spark, has injector pulse, but no fuel pressure. Checked the pump...it runs fine. Pressure at the fuel filter.....pressure at the fuel rail inlet, but no pressure on the fuel rail? Could this be a FPR failure???? Car won't start...don't know why no pressure on the Fuel Rail. Any help would be appreciated....

Cheers,
Michael

Aug 14, 2006 | 02:51 PM

n1kki6

Le Mans Master

Joined: Dec 2000

Posts: 8,740

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From: Minneapolis MN

I replaced a ton of stuff trying to track down a fuel problem and it ended up being the FPR, not very expensinve and it only takes about 15 minutes to swap out.

Aug 14, 2006 | 05:00 PM

Wildride

Burning Brakes

Joined: Sep 1999

Posts: 786

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Cruise-In II Veteran

"only takes about 15 minutes to swap out."

You must be talking about a LT-1. It takes much longer (hours) on a TPI.

Aug 14, 2006 | 06:01 PM

zr1fred

Race Director

Joined: May 2006

Posts: 10,691

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From: Phoenix Arizona

Pinch off the rubber part of the return line at the gas tank, and see if you can maintain fuel pressure at the rail. Disconnect the two injector fuses and see if you get pressure.

Aug 14, 2006 | 07:40 PM

mk842766

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From: Richmond TX

Quote:

Originally Posted by zr1fred

Pinch off the rubber part of the return line at the gas tank, and see if you can maintain fuel pressure at the rail. Disconnect the two injector fuses and see if you get pressure.

Thanx, I'll give it a try....

Cheers,
michael

Aug 14, 2006 | 07:50 PM

black_89_vette

Melting Slicks

Joined: Nov 2000

Posts: 2,469

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From: Winchester Ontario

Similar thing happened to me. No fuel pressure at all.

Turns out the fuse blew that I had. I installed a walbro 255 lph fuel pump with the Racetronix "hot wire" kit. Switched the fuse right behind the alternator and fired right up.

Aug 14, 2006 | 08:41 PM

mk842766

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From: Richmond TX

Quote:

Originally Posted by zr1fred

Pinch off the rubber part of the return line at the gas tank, and see if you can maintain fuel pressure at the rail. Disconnect the two injector fuses and see if you get pressure.

tried this, and it made no difference at all.....need some more ideas.....

Aug 14, 2006 | 08:43 PM

mk842766

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From: Richmond TX

Quote:

Originally Posted by black_89_vette

Yep, got the same setup as you, but the fuse is fine....pump runs, pushes out a ton of fuel at the output hose at the tank, plenty of fuel at both sides of the filter, nice stream at the inlet of the rail, but just kind of dribbles out at the shrader valve......