No power to fuel system after the worlds longest rebuild

Any electrical issues

No power to fuel system after the worlds longest rebuild

by rob » Wed May 12, 2010 12:05 am

Finally I have my turbo engine built with a second hand head but it wont start.
This is what not happening.
There is no power to the fuel pump and if I feed it with 12 volts then the rail fills up but no fuel getting through to the injectors.
I have swapped the fuel relay and no difference so tested the fuel injection fuse and there is no power going to it so I need to know what could cause it, have I missed a plug in the engine bay or is it something else, I don't think its the alarm witch is a toad AI606 if I remember right what I wired myself and it cuts the fuel and ignition but the car turns over so I'm sure its not that.
Help.....................
rob
 

Re: No power to fuel system after the worlds longest rebuild

by BIG DAN » Wed May 12, 2010 12:13 am

i would have said alarm on my 1st guess but maybe put direct live to it just to check that its working as it should then maybe get an electric tester to see if there is a break in the wire some were im haveing teh same problem with my corsa at the momment but that is teh alarm lol
BIG DAN
 

Re: No power to fuel system after the worlds longest rebuild

by rob » Wed May 12, 2010 12:52 am

Put the power to the fuse?
rob
 

Re: No power to fuel system after the worlds longest rebuild

by v6 steve » Wed May 12, 2010 8:26 am

I would say you have missed an earth or the live feed to the ecu if both pump and injectors arent working
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Re: No power to fuel system after the worlds longest rebuild

by Stupink » Wed May 12, 2010 8:39 am

Earth wise, should be three wires on thefuel rail. two at the gearbox end.
How much effort would it be to bypass the alarm rob? I know you fitted it so I know you could do it, but how long would it take you to temporarily bridge the connections? are they all taped up and hidden away?
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Re: No power to fuel system after the worlds longest rebuild

by rob » Wed May 12, 2010 8:40 pm

Alarm will take too long as the car is in work and I can only make little time to work on but found out a bit more today.
The injectors have 2 wires to each one A live and A earth. The earth is the problem as I'm told it is a switched earth by the ECU and it is always live now and when I unplug the fuel relay both have now power so I'm sure its the relay.
rob
 

Re: No power to fuel system after the worlds longest rebuild

by Phantom » Thu May 13, 2010 1:50 pm

if it turns out not to be this and want to know how to bypass the Toad alarm you have PM me
Phantom
 

Re: No power to fuel system after the worlds longest rebuild

by rob » Thu May 13, 2010 10:03 pm

how long will it take mate
rob
 

Re: No power to fuel system after the worlds longest rebuild

by Phantom » Fri May 14, 2010 10:12 am

what to bypass the alarm? it's only one wire, so 5 mins

or if you like give me a call 07703 564223
Phantom
 

Re: No power to fuel system after the worlds longest rebuild

by Phantom » Fri May 14, 2010 11:11 am

whereabouts are you Rob?
Phantom
 

Re: No power to fuel system after the worlds longest rebuild

by rob » Sat May 15, 2010 1:06 am

Im in Liverpool
rob
 

Re: No power to fuel system after the worlds longest rebuild

by rob » Sat May 15, 2010 1:08 am

Yes the looms conected
rob
 

Re: No power to fuel system after the worlds longest rebuild

by rob » Wed May 19, 2010 10:32 pm

This car is p****n me off now, today I went back to the drawing board and did a compression test and its very low around 50psi or 4 bar ish on 2 and 110psi ish on the others. Did not do a wet test and I have noticed the oil light is not going off wile cranking.:doh:
rob
 

Re: No power to fuel system after the worlds longest rebuild

by rob » Wed May 19, 2010 11:20 pm

thinking of draging the car for a bit to build the compression.
rob
 

Re: No power to fuel system after the worlds longest rebuild

by rob » Thu May 20, 2010 8:37 pm

Did wet compression test and got good results and I know this is nothing mechanical.
rob
 

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