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Help, R33 Burnt Fuel Pump Connector

rocketeer

By rocketeer,
in Engines & Forced Induction

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rocketeer Enthusiast

rocketeer

Posted
Posted

hey guys

This morning while driving to work my r33 skyline shut off while driving, after inspection found that there wasn't any fuel pressure so the car would start but wouldn't fire.

So after getting the car towed home i did a further inspection on the car, i then checked all fuses and found it to be all good, then i removed the fuel pump relay and did a direct feed of power between two of the relay socket terminals to see if the fuel pump would power up, after this attempt no sign of life from the pump, but while giggling the wire to the fuel pump i noticed that the fuel pump would buzz. so i started the car and it started with out a problem, i then giggled the same wires going to the pump and the car shutted off.

AFter further inspection i found that the power wire that runs to the top of the fuel pump was burnt out. to fix this i ran new leads with a 30amp fuse on the active cables to the fuel pump and the car is now starting and driving normal.

But one thing that has got me curious is why didn't the original fuel pump fuse didnt blow but rather it allowed the connector of the fuel pump to burn. And what would have caused it to burn in the first place, i inspected all wiring harness and it has not been hacked up in anyway or form.

So if anyone else out there can answer my question it would be very much appreciated.

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https://www.sau.com.au/forums/topic/192623-help-r33-burnt-fuel-pump-connector/
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  • 4 years later...
heasly88 Newbie

heasly88

Posted
Posted

hey i had this happen to me y'day, same thing, knew it wasnt getting fuel after taking the inlet line off at the engine bay and no fuel pressure, after working on trying to put a new fuel pump in last nite and today i found that the terminal at the plug had burnt out, thus causing a crappy connection at the top of the fuel pump, have to replace the plug tomorrow i think as i run out of time today, i dont have an answer for you, but wanted to make u aware that you werent the only one that this has happened to, and im am very curious as to why the fuse or relay didnt blow before it fried the terminal...

blk94r33 Mentor

blk94r33

Posted
Posted

Id be putting a new pump in, the reason they would have burt is too much load or current from pump. Or a dodgey connection? cheap insurance

Usually the case, but the fuse *should* trip before this happens.

Otherwise:

-The connector was dodgey and burnt out

-The earth didn't have a good connection and drew excess current and burnt it out

-Other fuel system fault causing the pump to work harder

Fix the connector, check the above and should be ok.

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