Car won't start

[chadix7age]

have you tried checking the circuit opening relay?

[Fii]

chadix7age Wrote:have you tried checking the circuit opening relay?

What is it responsible for? Where can I find it?

[chadix7age]

maybe this would help:

[Ivan141]

The circuit opening relais switches power to the fuel pump, but the fuel pump works so that wouldnt be a likely cause of the problem I think.
If I remember correctly it's somewhere under the dash around the passenger side footwell.

[chadix7age]

how to test the circuit opening relay:

WITHOUT AIR FLOW METER:



WITH AIR FLOW METER:

[max_ae86]

Try with engine check codes first!!!
I also couldn’t start my engine ones, because I had an open circuit in distributor cap and ignition coil wiring. Check code helped me to find the problem.

[Roger]

I have this problem also. by me was there a small difference in the cable tree the cable tree was zenki and the car was kouki

[Fii]

Today we checked the codes - nothing.
Then we unplugged all the injectors and measured voltage on the leads. Now it was fine - 12V on one lead and nothing on other. When cranking I could see needle moving a little bit on my analog voltmeter when connected to ground lead on the plug, so I believe, that ECU is working fine as well. So there is voltage on the injector leads and there is spark with the plug unplugged. Could it be that when the plug is back in there is no spark? But spark has to go somewhere and I saw no sparks in the engine bay in the dark, while cranking with plugs in their places.

We even tried to tow the car for several kilometers, and still nothing

The only things that come to my mind is changing the plugs and the plug wires, as well as playing with ignition timing.

[Ivan141]

I think you might have to take a more basic approach again...
1st be sure that your timing is close enough to what it's supposed to be..
Do you smell petrol fumes from the exhaust when trying to start?
If so the injectors should be working..
Then if you are sure that your ignition is set correctly and working the only thing I can think of is that the engine must somehow be flooding..
Had this problem on another ae86 before, and it would only start after we ran the engine with the EFI fuse removed and the throttle wide open for a bit.

[irishtwincam]

Check all your earth wires.
The one on the intake manifold especially.

Look around your engine for wires hanging and take a pic.
Poor earths could be the cause of fuel/spark problems.
Seen it so many tmies.