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Fuel Pump Issue again...

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Old Apr 26, 2016 | 12:00 PM
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Default Fuel Pump Issue again...

Ever since my Racetronix fuel pump died and was replaced I've been plagued by an electrical gremlin that doesn't go away. It's so random that I haven't been able to track it down or get close to the area to zero in on it.


It will randomly cut out, sometimes if I hit a bump, or if the road is wavy like when you go across a bridge BUT yet if I move the wires it won't cut out but when it does cut out I wiggle the wires (see pic below) and it comes back on or if it happens while in movement I can rock the car a little and 50/50 it comes back and I don't have to stop. It's worse when I start getting under 1/2 tank.

I thought it was a loose connection or ground and have pulled the pump several times and see nothing.

The arrow is where I jiggle the wire harness going into the tank. I've chased all of the wires and can't find any shorts, cuts or broken wires. I've even used a multi-meter to check for connectivity and if volts are proper. Both answers = yes.



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Old Apr 26, 2016 | 12:05 PM
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Let's try moving this from Gen III Internals to a more appropriate section and see if that doesn't help you get some answers.
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Old Apr 26, 2016 | 01:03 PM
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Thanks not sure why I placed it there...
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Old Apr 27, 2016 | 09:30 AM
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I had the same problem, and it turned out to be the relay(s). The one under the drivers dead pedal and my racetronix hotwire relay both had loose pins so I had to tighten them up to make the issue stop.
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Old May 2, 2016 | 03:05 PM
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Originally Posted by IDriveChevy
I had the same problem, and it turned out to be the relay(s). The one under the drivers dead pedal and my racetronix hotwire relay both had loose pins so I had to tighten them up to make the issue stop.
All this time I thought it was in the fuel tank and it turn out it's was around the relay. I cleaned up the ground point and re-routed the harness so that it was closer to the body and zip tied it into place. Seems to be working for now.

Thanks
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Old May 3, 2016 | 09:54 AM
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Originally Posted by smws6ta
All this time I thought it was in the fuel tank and it turn out it's was around the relay. I cleaned up the ground point and re-routed the harness so that it was closer to the body and zip tied it into place. Seems to be working for now.

Thanks
What I will do after fixing mine is grabbing it and shaking to simulate vibration/bumps while driving to make sure it doesn't cut out on me again.
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Old May 3, 2016 | 01:54 PM
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Ditto, that's how I ended up finding it.

Electrical issues I loath....
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Old May 3, 2016 | 05:12 PM
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Racetronix sent me a connector kit to replace the original one. They said they had a tendency to fail.
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Old May 5, 2016 | 04:28 PM
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This **** is pissing me off.....it came back again. Getting tired of being stranded on the side of the road. It's getting dangerous.


I emailed Racetronix, awaiting reply.
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Old May 6, 2016 | 09:44 AM
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Originally Posted by Orange Juice
Racetronix sent me a connector kit to replace the original one. They said they had a tendency to fail.
If that's the case I'll have to email them and see if they'll replace it for me.
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Old May 11, 2016 | 04:07 PM
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It's been a week now and no response from Racetronix on email.
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Old May 11, 2016 | 04:20 PM
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Originally Posted by smws6ta
It's been a week now and no response from Racetronix on email.
Please use our web contact form to reduce the chance of SPAM rejection.
http://racetronix.com/contact/
Please provide your e-mail address for reference.
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Old May 12, 2016 | 09:26 AM
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I've signed up for your support forum but have not been able to see or post anything.
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Old Jun 28, 2016 | 01:32 PM
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I bought a new harness and for now it seems to have fixed the issue. Not sure still what was messing up but for now hopefully it's fixed.

Xfingers....
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