Fuel Pump Relay Fuse Keeps Blowing!!!!
#1
Fuel Pump Relay Fuse Keeps Blowing!!!!
Hey all,
I need some help. I've installed my blower (Roush M90) and upon trying an initial startup the car cranks but won't start. I checked the fuse and low and behold the fuel pump relay fuse is busted. I put in a new fuse, go to start it, same deal. Obviously the car keeps blowing that fuse
What am I doing wrong here?
Any ideas????
Thanks!
I need some help. I've installed my blower (Roush M90) and upon trying an initial startup the car cranks but won't start. I checked the fuse and low and behold the fuel pump relay fuse is busted. I put in a new fuse, go to start it, same deal. Obviously the car keeps blowing that fuse
What am I doing wrong here?
Any ideas????
Thanks!
#7
Ditto on the wiring, I'd double check and go through the wiring plugs/harnesses once around again. If you're fuse is blowing up, it could mean a "dead short" in your fuel pump relay wiring somewhere. I doubt that though, unless you really whacked out on your wiring somehow..
#8
I don't think I swapped it with the TB wiring. Both the TB wires have the red tabs don't they? If its this fuse consistently blowing I can assume it has to be an issue with a wire from the fuel pressure regulator plug, correct? At this point I guess its a short so tonight ill take apart the entire engine wiring harness and trace those wires to check for cuts in the insulation or bends/pinching. Of this wire did short that section must be replaced right?
#9
I don't think I swapped it with the TB wiring. Both the TB wires have the red tabs don't they? If its this fuse consistently blowing I can assume it has to be an issue with a wire from the fuel pressure regulator plug, correct? At this point I guess its a short so tonight ill take apart the entire engine wiring harness and trace those wires to check for cuts in the insulation or bends/pinching. Of this wire did short that section must be replaced right?
So long as the fuse is blowing right away there shouldn't be an further Chernobyl action (melted wire)to need to replace the whole line.
#10
shouldn't there be a current limiting resistor somewhere in the fuel pump relay circuitry somewhere? if it's blowing fuses, would that mean that the short to ground is after the source of voltage and not before (fuel relay plug), or am I seeing things incorrectly??