My 91 EF Si was good last time I parked it about 4 weeks ago. Now it will not start again.

I jumped the clutch safety switch - not an issue.
I replaced main relay with a working one. I have 2 that works.
Replaced new dizzy.

After doing some reading here:
- I jumped the started solenoid directly from Positive battery terminal
- put the key in the ignition Start Position
- Car started.

I tried it a bunch of times and it was consistent and starts all the time.

Put back the original 1 prong wire to the starter solenoid and now it will not start.

Questions: What do I need to check if I'm not getting signal to the starter solenoid?
I assume the ignition switch is ok, because car starts after I jumped the starter solenoid?

Any inputs or pointers? Thanks

 

Bad ignition switch not sending the signal out at all? I just bought a car that sat up for 5 years, and I had to crank it the same way (Positive>>>starter). I haven't checked my ignition switch because I haven't been driving it.

 

relay???????

 

And also, I guess the next step is to consider the route of the signal wires. Specifically, you need to make sure the clutch safety signal is arriving at it's destination (ECU, right??). Find out if the clutch safety switch manages a positive or negative signal, and then you can directly apply ("jump") the right signal (positive or negative) at its destination (find the pin# on the ECU).

 

But the keys are inside and in the start position. Jumped the starter solenoid and it did start.

--> So I assume ignition switch is good right? Because if it's bad, even though I jumped the starter solenoid - it will not start?

 

Yeah I have read about it and it's possible. Anybody know how I can jump start the relay to test? What wires to jump to test?

 

Good point. Thanks will check it

 

As soon as you connect power to the starter solenoid, the starter should spin. With or without keys in the ignition.

My car did the same thing, and I just put a switch that jumped the solenoid from the main starter power wire. Has been working fine for months.

 

If you are outside the car while you are jumping the starter, then your key is resting in the ACC2 position. Your car runs in the ACC2 position. The "start" position is the spring loaded position that momentarily sends that signal towards the starter.

 

^ ok good info. Thanks guys.

 

lol..my suggestions are just general. Like "toward the starter." I don't know what "relays, ect" may be in that path. Sometimes it is simpler to check the destination for successful "signal" arrivals. I'd suggestion getting a pinout for your ECU, and check for the arriving signals that are relevant for starting. Especially check for the clutch safety signal actually REACHING the ECU.