Electrical Problems: About To Light The Match 4Age

[Khayne]

I put a 4age into a ae92, I spliced the original loom onto a ae82 loom when I turn the ignition on I've got power both sides of the coil when I crank the engine no power to the positive side of the coil when I put power back to positive on the coil I get weak spark at the plugs. I have power at the fuel rail and spark at the plugs and compression in the cylinders BUT NO GO AT ALL!!! Can anybody please help me I don't know where to go from here.

[altezzaclub]

Run a wire from battery +ve to the coil and try starting it, that will pin the problem down to the "start" wire.

 

Grab a wiring diagram and see where the power from the "start" position on the key goes to. It will either power the coil directly or it will go to the ECU and let that do the work.

[Khayne]

Cheers mate ill give it a whirl. Ill get back to you

[Khayne]

I do get spark when I power direct to coil but no sign of life at all even with. Fuel introduced I powered the ignition via relay to the 86loom at the fuse on the loom white wire it runs through fuse to black orange I powered the efi via relAy to black red on the 86 loom I have acc and constant connected to ecu the starter is wired via relay with black white from the 92loom as trigger this should work I hAve reset tdc twice the dizzy is at about where the 8 on a clock would be I have a digital multi meter at the injectors I get voltage so I am happy this is an ingiNation problem it's got to be something I have overlooked I have checked every fuse I also have no ingnition lights or reverse lights when I switch the key on the brake light lights but that's the only one I am stumped any help would be great thanks

[B.L.Z.BUB]

I'm not trying to be a dick bro, but a little punctuation and grammar would help.

I want to help but I looked at that wall of text and I instantly can't be bothered trying to translate it.

[altezzaclub]

.I do get spark when I power direct to coil but no sign of life at all

OK, so we have spark. That means coil and distributor are working.

 

I hAve reset tdc twice

Do you have a timing light?? If not, make sure the rotor does turn the way you think it should for the correct firing order. Set the crank to 10deg before TDC and make sure the sensor in the dizzy is right beside the trigger. That means we have the spark at the right time.

 

I have a digital multi meter at the injectors I get voltage

We can assume the injectors are firing then. Can you take one out and fire it into a jar?? or can you smell raw fuel everywhere when you crank it? Maybe you have lost the fuel pump or some part of the fuel system such that it isn't injecting even when the injector opens.

 

One more question- can you see the injector pulse on your multimeter?? Does it jump up and down to 12V ??

[crunk81us]

I'm not trying to be a dick bro, but a little punctuation and grammar would help.

I want to help but I looked at that wall of text and I instantly can't be bothered trying to translate it.

lol i skim read it too :)

 

and sorry Khane no idea..

Edited January 24, 2013 by crunk81us