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Ok, let me think about what you are doing to see if we are missing something.
When you first turn key to position two, the ECU turns on the relay for a couple seconds and then drops it back off.
Not until you crank the engine does it pull the relay back on. It does this because the ECU/ICU sees a signal from the CPS or hall sensor on earlier cars.
If you do not have that pulse the ignition does not come on either.
If you do not have that pulse the fuel injection does not come either.
Just because we can manually close that relay it does not guarantee the engine will start. It only take the safety feature of the relay out of play.
This relay can and will kill the car but we are bypassing that feature.
We just want to get both those contacts down together to close those circuits.
It runs the pumps and O2 sensor but it takes the ECU to keep it closed by a magnetization coil.
It pulls that plate down like a rubber band tighten squarely over it firmly.
You can close it with you fingers as it won't hurt you unless it eventually gets too warm somewhere? That could be a failing relay? Just something to note in the back of the brain.
I really like this!
Art Benstein provided a picture for checking the power at the AMM. That same orange wire is on the relay circuit powered by position two of the key switch.
He says if you have power there with the key on it is in play! It needs to be there while cranking also!
Who knows it might be an ignition switch when it's in position three?
Its another nice place to check things first without having to dive under the dash!
Let's say it ran but lousy. If you had no power, there at the AMM pin or wire it would not be working. That would explain why it ran lousy. Only a broken wire to there or its pin connector could be loose and pushed upwards.
You would see that it looked different from the others by doing his procedure.
So, if we back up to your problem, you might not have spark ICU or the ECU not turning the fuel on because of it or a missing CPS signal. REMEMBER the relay can do the same thing so we want to rule that out.
Yes you can put jumpers in the same as you did to run the pumps. But the ECU/ ICU will make no noise.
That leaves you to go check for spark and/or wet plugs.
I like starting fluid to check the mechanics of engine function as well! Hopefully all in one fell swoop!
That is why I posted some steps to verify what might be happening. A pointer of direction.
I know, You are getting flustered. Your statement about putting the relay in backwards, is nothing but second guessing yourself, as it's not possible to fit all the terminals into the socket.
The relay is nothing more than a two pole switch with a single throw direction...downward. It controls two separate circuits simultaneously.
There are possibly two fused power circuits controlled and it serves as double safety shut down. It help stops some battery drain, if the key is left on, through O2 sensors heaters and possible computers or the AMM.
I have not researched that. It's just a darn remote controlled switch that I can close and eliminate.
Just be calm and move through the process of elimination. You will get it going!
Phil
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