i had that wire in the correct position mine is a thick red and blue with big yellow plug. puttin volt meter to connector there is no power showing even on turn over? That diagram is very helpful tho
check you have a bridging wire between pin 30 and 30b, then check you have a fuel pump relay in the right socket, oh and check the fuse. if you check my fusebox faq in the electrical faq section it lists relay & fuse positions, plus lists relay numbers to check. also make sure ecu is powering up, if not the pump relay wont be triggered!
a mate mentioned summat about crank/ cam sensors. how can i check if there is power on the ecu when its plugged in relays are all correct may find a spare relay and swap it over.
even if crank sensor had exploded you would still see the pump prime on the 1st turn of the key. check the fusebox faq for relay positions, fuel pump should be 67, 80 or 167. ecu may or may not have a relay depending how old it is. if you bridge a wire between the 2 large terminals on the relay socket the pump should run, if not its the 30-30b wire on the back thats missing.
Dude have you actully checked to see if you are getting spark, let alone fuel supply. Have you check for any codes via VDS or a similar scan tool. When did this issue happen.
I would have thought that VR6 motors, at least on later post 95 ones like mine do not prime with key on and engine speed=0. GVK indicated this some time ago and I have since confirmed with my own MK3 VR6.
yeh mate its gettin spark just injectors aint opening. the fuel pump is wired on a switch live at the moment from when the valver was in it. not scanned it yet for the whole reason of it wont tell me n e thin i dont know surely. this z1 should that have a switched 12 v supply to it? all the plugs on the back of the box are in now.
Z/1 is direct output from the fuel pump relay, and this is where injectors get power. So if you don't have a relay that'll explain why injectors are not getting power! fuel pump relay is 67, 80 or 167, and it should be in socket 12. it needs an earth from the ecu to trigger, and 30b on the rear of the fusebox needs 12v as that's the permanent live to the fuel pump relay socket. 30b gets power either from pin 30 or a pin in socket Y, either is fine.
yep, any decent thinckness wire will do, but from the factory its jumpered to 30, or one of the Y pins, depending on the model
so the main fuse box feed is correct in point y. if i put a live feed into the top of the 30- 30 b jumper that will be correct???
yeah main battery live comes into Y, and 30b just needs a permanent 12v supply jumping from Y or 30, either one will work
right have tried them both and they dont make any difference to the fuelling i put power fom y to z 1 and that made the fuel pump buzz. if i were to disconnect my switch live to pumps and try and get them to run back on the original wiring would this help. I do know how you mean tho with making it live cause when i tested it straight to z 1 the blue/red cable in the bay became live
do you mean you plugged a live feed into the wire that goes into Z1? start with the basics: fit fuel pump relay to socket 12 fit jumper wire from 30/y to 30b turn engine over and you should hear fuel pump relay click if that checks out you know the relay is workign and the wiring to it is ok, plus the ecu is powering up.
