Where's My Injector Pulse

[Phil-085]

Hi Guys

Swapped out my head yesterday due to 10 bent valves. Used all electrics off the old head i.e. TPS, IAC, AAC, looms and injectors went to fire it up got compression and spark but no injector pulse.

Replaced the CAS and went through checked and cleaned all electrical plugs and still nothing.

A little bit stumped on where to go next....

Any suggestions would be great.

[blind_elk]

With IGN = ON, you should have +12V on one side of the injector. The other side is switched to earth through the ECU.

[Phil-085]

So when the ignition is on only one side should have 12V? What if both sides still have 12V? Isn't it when the engine is running it's switched to earth so that the injector opens at the right time?

Edited October 17, 2010 by Phil-085

[Chris Rogers]

correct me if my wiring is wrong. blk/red =+12v the other side will show 12v with the engine NOT running. if you get it turning over with a niod light then that light should flash.

I would be checking connections myself.

[Phil-085]

Thanks for all the suggestions.

Have checked all wiring and connections and all are good.

Cant remember where the injector relay is to check it just in case???? But if I have power to the injectors so cant see this being too much of an issue.

Near ready just to take it to an auto electrician and get them to work it out

[Chris Rogers]

main IGN relay is above the fuse panel inside.

[Phil-085]

Thanks man will let you know how i go

[Phil-085]

Ok so there is 3 relays above and 1 beside the fuse box. Which one is the IGN relay? I know its probably a stupid question but hey don't ask don't know

Edited October 18, 2010 by Phil-085

[Phil-085]

Not the relay put a new one in still nothing.

[R.3.2.G.T.R]

relays next to your ecu in passenger side kick panel, you will hear it click when ignition is turned on

[Phil-085]

Just replaced the 2 green ones down with the ecu still nothing.

[Chris Rogers]

ok - do you own (and know how to use) a multimeter?

[Phil-085]

Don't own one but can get one....

[Phil-085]

Ok had another thought....could the timing be out causing the injectors not to fire??

[Phil-085]

Any comments on this?

[Phil-085]

Ok guys so turns out that my timing may be 180 degree out. Does anyone know an easy way to fix this? Have been having trouble finding a mechanic who actually wants to work on the car (one of many downsides to owning an import in a country town)