4age no spark or fuel. Check engine light?

**hemi twofifteen turbo** · 14-06-2007, 07:49 PM

Still trying to get 4age in AE82 started. No spark or injection it seems. The main EFI relay is clicking on and off and there is power to the coil, and the coil seems ok as a spark jumps when i flick the igniiton off. With the ignition on -- red warning lights lit, the check engine light is not lit. I would assume it should be? going out now to check globe and probe wires, any pointers or places to start that anyone could recommend?

**LeeRoy** · 14-06-2007, 09:40 PM

If your not getting engine light when youve got the key at IGN then it can mean two things.
1- Globe is blown
2- Ecu is not getting power/unplugged.

I'd probably check the 2nd thing first as its probably easier. Firstly check fuses both in engine bay and drivers footwell and make sure theyre alright and if they are then move onto the ECU.

The ECU should be located on the pass side under the center console pretty much directly below the stereo and ash tray etc. If you pull away the carpet on the right of the pass footwell you should be able to see it.

If you can google and get some wiring diagrams find out which one is power and probe the plug and check for voltage when key is at IGN. If your getting voltage then check the globe and if that turns out fine then maybe its giving you an engine code which you can pull off the ocmputer by bridging T and E1 iirc with some wire in the diagnosis connector in the engine bay.

After you bridge these two put the keys in and go to IGN, the engine light will flash once or more giving you the first number of an engine code, it will then pause and continue with one or more flashes giving you the second digit. Once you get a fault code google that and it should point you in the righ direction.

- LeeRoy

**MR04AG** · 14-06-2007, 09:53 PM

If this car was originally a single cam it's possibly that the injectors and ignitor aren't powered up... I had this problem in my KE70 and there was only one plug that wasn't getting powered up, big black sucker on the left of my engine, so... the front of yours...
If it was originally twin cam it may be unplugged???

**hemi twofifteen turbo** · 15-06-2007, 11:57 AM

Thanks for the info guys, is all sorted now! Turned out the car had a kill switch installed, so the ECU had no ignition feed. After poking a test +'ve around the power input pin (B+ etc) I got the click of a relay and the check engine light turned on, tried to start, on one attempt it kicked after letting go of the key... I was using a +'ve from the radio which turned off under cranking, a direct positive and then it started! Thanks again for the help, now all I need is a map sensor I just found out I was missing!