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Racecar fuel issue??

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Old Jun 24, 2009 | 05:31 PM
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ksbenjamin44's Avatar
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Default Racecar fuel issue??

Any help would be great!
It started out that i would only get juice to the fuel pump periodically so i direct wired the fuel pump with a toggle switch. Any ideas how to fix that?
With the fuel pump wired that way as we are running the car seems to cut out when i back out of the throttle and doesn't want to accelerate. It backfires out the exhaust then seems to go good again. Like i said any help would be great.
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Old Jun 24, 2009 | 11:51 PM
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Default Re: Racecar fuel issue??

Sounds like you have more than just a wiring issue. How was the fuel pump wired before? What kind of pump is it?
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Old Jun 25, 2009 | 10:54 AM
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Default Re: Racecar fuel issue??

it was just factory wired until it quit working. Now i am trying to get it back to original. it is a stock pump. Would it be the main relay that is only putting juice out sometimes? I am lost. Any ideas??
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Old Jun 25, 2009 | 11:49 AM
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fcm
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Default Re: Racecar fuel issue??

MM&Y of car?

Sounds like you have a problem with the PGM-FI Main Relay, it contains both the fuel pump relay and the fuel injector relay.
A problem with the PGM-FI Main Relay would explain no power to the fuel pump and "cut out" and no acceleration even after you wired the fuel pump directly.

This may help... http://techauto.tripod.com/mainrelay.htm
and this... http://www.tegger.com/hondafaq/mainrelay.html

As mentioned you may have more then one issue. 94
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Old Jun 25, 2009 | 05:22 PM
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Default Re: Racecar fuel issue??

Sorry guys it is a 1994 civic ex with a Ls swap. I am going to try the main relay. Any other guesses? Thanks for the suggestions.
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