Magic Missing Fuel Pump Volt
#1
Magic Missing Fuel Pump Volt
When I check the voltage to my fuel pump wire - not connected to the pump its around 12.40 volts - fine!
When I check the voltage to my fuel pump when its connected and working its 10.36 volts - not so good!
Wheres the almost 2 volts going and does this mean my pump is focked! Id measure the amps but I cant work me meter
Cheers in advance
When I check the voltage to my fuel pump when its connected and working its 10.36 volts - not so good!
Wheres the almost 2 volts going and does this mean my pump is focked! Id measure the amps but I cant work me meter
Cheers in advance
#3
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Somethings definately not right.
Check all the cables, especially the earth points.
Could need just a clean up of the connections or maybe a complete rewire. It may even be a tired pump drawing more current than the cable can supply, so the volts drop.
Ben
Check all the cables, especially the earth points.
Could need just a clean up of the connections or maybe a complete rewire. It may even be a tired pump drawing more current than the cable can supply, so the volts drop.
Ben
#5
Originally Posted by Mr Bump
It may even be a tired pump drawing more current than the cable can supply, so the volts drop.
So is that perfectly possible or likely then?
Dave.
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#8
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Its either high current draw, faulty pump or a wiring problem.
The easiest to test is by we doing all the earth points around the pump/pump craddle/chassis.
Ben
The easiest to test is by we doing all the earth points around the pump/pump craddle/chassis.
Ben
#13
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Those pressures sound OK to me, not sure what specifically the FRST fuel pressure is meant to be but my mate's mk2 rally car which runs 2x 45 DCOE's goes to about 4.5 bar when primed and then 2.75 when running. When you measured this pressure was the car running OK? You want to know what the prerssure is when the car isn't running OK to relate the running problem to the fuel pump. HTH
#15
I've found that life I needed.. It's HERE!!
Inside the tank on the frst there is a small black box, which is some sort of choke to stop electrical noise. This actually melted in my old car Check this aswell and try and bypass it see if this cures any probs
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