saph_Al

iTrader: (2)

Ok here's the back story so far. The engine ,ecu and engine loom are from my last car which i broke so i know there ok , ive changes to braided fuel lines, GRP A ign and ign loom , fuel pump is new (044) With aftermarket loom . I I have power to the fuel pump and it primes when the ign is turned on and when cranking. i have a spark and fresh motorcraft 071 plugs . new tank with fresh fuel . I'm deffo getting fuel up to the reg but past that i dont know. I have 12V at the injectors but still the fecking thing wont start . I've yet to check power to the ECU and have look like i have a relay missing at the back of the fues box (far left at the back ) if anyone can comfirm what it is or if its blank anyways that wod be great . I usually love fault finding but it's starting to feck me off now ive been chasing it all day . any sugestions would be great . cheers Al

JOHNDQ

You need a switched earth from the ECU to fire the injectors mate have you checked for that the +12v is from the fuse box

saph_Al

iTrader: (2)

no i havnt actually. i'll get on it after ive had my tea . is it run from the injector relay under the dash ?

JOHNDQ

Im sure you will find the supply voltage is from that relay and the switched earth is direct from the ECU, thats the one thats opens the injector to allow the fuel to pass though

saph_Al

iTrader: (2)

i'll check the output when cranking in the mornin ,cheers .

Turbo Zetec

iTrader: (1)

You say you're getting fuel to the reg, just checking, you haven't been silly and got the feed and return the wrong way around? The fuel reaches the regulator after its been past the injectors, so there should be fuel coming out of the bottom of it, not out of the pipe that goes to the bottom of it.

saph_Al

iTrader: (2)

that was one of my first thought as i am that dim . i checked and double checked then had a mate verify i wasnt being really dim .

martysmartie

iTrader: (1)

This ^^, the injectors ground are switched via the ECU, your ECU has power by the fact the pump primes, likewise as is your injector supply!

I would check the phase sensor and make sure you have not misconnected this and the CPS.

Martin

saph_Al

iTrader: (2)

cheers martin . just to clarify the tps is the white connecter and the phase is black .? this is as it stands . the phase is only a year or so old but i will check that the pick up is gapped correctly and that its clean .

martysmartie

iTrader: (1)

Yes, CPS is white IIRC.

Martin

saph_Al

iTrader: (2)

phase sensor is ok as i have tested it . there is deffo no output for the injectors . they have power but obviously arnt reciving a signal to fire . so out with the loom it is ,I'll test it and see where i go from there .

saph_Al

iTrader: (2)

i have no conti on pin 23 and the phase sensor ve+ (If ive worked the pins out correctly). going to pull the wire and replace and refit the loom and try again . Time to build a new loom me thinks .