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Fuel Pump Not Priming

shibby69

By shibby69,
in General Maintenance

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shibby69

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g'day

put a walbro 255l/hr pump in my 32 gtst bout 2 months back, worked well had it tuned after the fuel pump was installed and the tuner said it was pumping in plenty of fuel and working fine.

the last 2 days it has just packed itself randomly and isnt priming.

could it be something besides the fuel pump?

any help would be good

thanks guys

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https://www.sau.com.au/forums/topic/319394-fuel-pump-not-priming/
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shibby69 Collaborator

shibby69

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if your not sure that its the actual pump thats shit itself.. take the fuel pump out and put straight 12v to it and see if its working..

that would help u in eliminating one thing ??

give that a go mate

Thanks Chris, will give it a go.

MrStabby Grand Master

MrStabby

Posted
Posted

If you've got a multimeter check if you can see 11 or so volts at the pump when the ignition is on. Also, some models have 'fuel pump control module' that dies, and a direct earth will bypass the module and get you running again. AFAICT the module reduces the voltage to the pump by switching in a soft earth when high fuel flow is not required.

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