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4Age Starting Issue

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  • gt500biatch
    gt500biatch

    used a test light it flashes when cranking on the injectors.......   this sucks :(

  • gt500biatch
    gt500biatch

    fuel is less than a week old. fuel is about 3/4 timing is fine havnt touched it since the dyno 6months ago or so, no sensors are fualty checked every wire in the car with a testerlight and multimeter.

  • gt500biatch
    gt500biatch

    the fuel pressure gauge that u had in didnt work when i got the car off that irish dude... and the intank and external pumps were replaced a few months ago...

  • Author

yeh thats what i thought :/ unless there was a block somewhere and it got pushed through ? I'm gna run rail cleaner through it at a mates workshop when i get a day off work.. hopefully its nothing major !

  • Author

right, back to square one haha it wont start again... i used the multimeter to check the ecu plugs, the fuel relay pin lights up but bairly where as the otherones light up instantly and nice and bright.... does this mean it is the relay wiring or is it meant to be like that ?

  • Author

found out the issue, i jump started the fuelpump relay, i get 40PSI fuel pressure and the car starts. faulty wiring to the relay.

 

thanks everyone for the input and i hope this helps someone down the line :)

 

Cheers

Owen

It depends which pin it was, you'd need to know the circuit to tell what it should be like. The relay circuit is often printed on its side or base.

 

Maybe the relay could be bypassed with 12V direct from the battery & see if that starts it.

  • Author

its the blue wire which powers the fuel pump, bypassed the relay putting a wire from that one to the red/white wire which starts it, it runs the fuel pump constantly so when i stop driving i just unplug the bypass wire. my sparky mate is gna come fix it this week sometime. atleast i know what is wrong now ! haha

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