enots Posted April 30, 2015 Posted April 30, 2015 Right went to fire up the car yesterday for the first time and sadly it wouldnt start Lol seems im not getting any fuel especially as i couldnt hear the fuel pump running or trying to run at all! Dont even know where to begin looking to be honest anyone have any ideas? Quote
H_D Posted April 30, 2015 Posted April 30, 2015 If the battery has good charge just undo the fuel pump and connect it directly to the battery. If it doesnt whine then its fukd Quote
5e colin Posted April 30, 2015 Posted April 30, 2015 check efi relay and fuse put power to the blue white wire strait from the battery ( fused ) if it dont kick in then pump fucked hold on a min. do you have an allarm ?? imobiliser might be armed Quote
enots Posted April 30, 2015 Author Posted April 30, 2015 Cheers guys will try this when i finish work and no mate no alarm immobiliser fitted Quote
enots Posted April 30, 2015 Author Posted April 30, 2015 Ok so fuel pump is fine runs off the battery perfectly so im guessing its wiring..joys!! How do i go about checking if the relays are in good order? Quote
_shaun_ Posted April 30, 2015 Posted April 30, 2015 just go full track slag and have it on a switch on the dash Quote
enots Posted April 30, 2015 Author Posted April 30, 2015 Thats my next option if i cant sort this lol Quote
5e colin Posted April 30, 2015 Posted April 30, 2015 check the relay pin think its armed by ign2 ??? i think bridge B+ and fp in the diagnostic socket to hear if you can hear the relay click and or if the pump start working( so when bridged go crank her over ) is it gt or v Quote
5e colin Posted April 30, 2015 Posted April 30, 2015 its either black/red wire ign2 or the black white wire on the relay from starter switch 1 of them 2 power up the relay for the pump Quote
enots Posted May 1, 2015 Author Posted May 1, 2015 Cheers dude will have a browse later its a gt by the way mate Quote
Stu Posted May 1, 2015 Posted May 1, 2015 The fuel pump relay is triggered when the ecu registers engine rotation (via the 24tooth trigger wheel in the dizzy) and it then supplies an earth to the circuit open relay from the FC pin. A couple of cars I've worked on had problems with the terminals in the dizzy plug so double check the plug terminals are connecting properly - you can adjust them tighter if your careful. Another check is (assuming the ecu is powered up correctly) if you pull the dizzy out and spin it by hand you should hear the injectors pulse. You can also put a multimeter between the FC pin and earth - there should be continuity when the engine is turning over and for a few seconds after its stopped turning over. Quote
5e colin Posted May 1, 2015 Posted May 1, 2015 wich color is it going from dizzy to ecu to trigger the fc stu ?? handy bit of info never knew dizzy had anything to do with it Quote
enots Posted May 1, 2015 Author Posted May 1, 2015 Right i bridged fp and b and fuel pump runs soooo where does this leave me haha! Quote
5e colin Posted May 1, 2015 Posted May 1, 2015 no signal from ecu to relay then when going by stu,s info that will be pin 4 of the 16 pin plug stick the pin from the multimeter in there while the ecu is plugged in and crank over to see if there is earth comming ???? to activate the relay ???? Quote
enots Posted May 1, 2015 Author Posted May 1, 2015 Right i have power to the fuel pump at last! Now i have no fucking spark hahah this things gona be the death of me!cheers for the help though guys appreciate it! Quote
enots Posted May 4, 2015 Author Posted May 4, 2015 All sorted dude whoever had removed a fcd from the loom hadnt recconected wires at the ecu joined them up and she fired up forst try 👍 Quote
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