EFI Fuse keeps blowing

[Alex88uk]

I have a Ep91 And the EFI Fuse keep blowing on start up. Any know faults with wiring or poor earths??? I have found that the distirbutor cap was loose but i disconnected the switch and found that the fuse does not blow on start up. Only when i connect the distributor back in the fuse blows???

 

[dac69er]

surely that points to the distribtor being at fault? take it apart and see if there is anything obvious.

if not then you will have to replace the distributor and go from there.

 

[Alex88uk]

I have brought to second hand distributor now and still EFI fuse blows. Is there any wiring that i should check also were is the earth located on glanza so i can check them ???

 

[Brendanlez]

check your injectors if you have a second set put them in

 

[weeJohn]

check your injectors if you have a second set put them in

The injectors are power up by AM1 not the EFI circuit. The components that can fail and cause an overload in that circuit are the fuel pump and circuit opening relay. If its not one of those 2 there is a short in the wiring somewhere.

Disconnect the fuel pump plug on top of the pump and see if it still blows.

 

[Brendanlez]

Happened garyfhs car, the injectors was the problem

 

[rinseep82]

happend to a mate check that where the loom goes through the firewall from the ecu that the rubber bung has note moved his had and the wires rubed on the metal and wore through causing the efi fuse to blow on start up worth a try matey

 

[Alex88uk]

I will try all them dam things annoying me now had it like 2 months and this happenes lol. Ty for all ur imput and help.

 

[Alex88uk]

I think it fuel pump disconneted switch and fuse never blow on start up. Iv tryed removing to have a look at but bolt is dam hard to get of and pissing me off now lol is there any relays i can check. its a ep91 ???

 

[weeJohn]

There is the circuit opening relay but I dont know where it is in an EP91, somewhere under the dash at the glove box. It will have 5 or 6 wires going to it rather than just the 4 a normal relay would have.

Reconnect the fuel pump and with the ignition at the 1st click bridge out B+ and FP in the diagnostics plug. This bypasses that relay and powers the fuel pump up directly. If the pumps at fault all will happen is the fuse will blow again.