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Fuel Pump issues?

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Old Apr 12, 2009 | 12:32 AM
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Default Fuel Pump issues?

I have a 99 maggie with an upgraded fuel system (do not know excactly which one) and for the past 9 months I have owned it has always been 60psi. I recently had to do valve springs and got it running today, took it for a drive and forgot to hookup the fuel pressure gauge. When I got to the gas station I hooked up the wire for the guage. When I went to leave it would not start (no pressure). I got it towed home. When I got it home the tow truck driver needed the mileage so I put the key in and it went right to 55 psi and started and ran.

In the boost a pump setup is there a second pump? a larger pump in the tank? Amplified power to a stock pump?

What should I do to test different parts of my system, or find out what system I have?


Toby
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Old Apr 12, 2009 | 12:55 AM
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also for a s/c 500 rwhp what psi should it be running?
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Old Apr 12, 2009 | 01:00 AM
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the only rec I have for the fuel system states CARTEK installed a fuel system (looks like supplied by customer) and put 42lb injectors on it. in 5/04.
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Old Apr 12, 2009 | 09:46 AM
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I think you should test your ground wires
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Old Apr 12, 2009 | 08:55 PM
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sounds good, talked to the prev owner and found out he is running a racetronics pump with an MSD boost a pump.
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Old Apr 12, 2009 | 08:56 PM
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what PSI should you see from a setup like mine (maggie / 500rwhp)
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Old Apr 12, 2009 | 09:12 PM
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55-60 will be fine. Not sure you even need a BAP. The old MSD voltage boosters were less than reliable. I wouldn't be surprised if it was going out.
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Old Apr 12, 2009 | 09:53 PM
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not being familiar with those setups, where are they typically mounted?

Also when they go out do they stop working at boost, or does it interfere with normal oporation?
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Old Apr 13, 2009 | 12:25 AM
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Originally Posted by BLOWNBLUEZ06
55-60 will be fine. Not sure you even need a BAP. The old MSD voltage boosters were less than reliable. I wouldn't be surprised if it was going out.


Thanks,Matt
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Old Apr 14, 2009 | 10:12 PM
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checked / cleaned all connections, driven 6-10 times almost 100 miles and everything seems to be okay, i will keep you updated.
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