Crankshaft Position Switch - Toyota Celica Forum
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post #1 of 3 (permalink) Old 05-20-2020, 05:46 PM Thread Starter
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Default Crankshaft Position Switch

I have a 91 GT and was wondering where I can find the Crankshaft Position Switch and the right fitment? Every auto shop has no record of a CPS that fits a 5th gen.

I was have some stall out at idle issues and then no start up at all (but cranks). No spark on all plugs. Changed ignition coil. Nothing. Not reading any power actually getting to the distributor either. Had a fried EFI fuse but swapped it out and still no start up.

I want to try replacing the Crankshaft sensor but can’t find any correct fitments or information online for these years.
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post #2 of 3 (permalink) Old 05-20-2020, 06:03 PM
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This is what I found online through my resource. Hope it helps.
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post #3 of 3 (permalink) Old 05-29-2020, 01:58 PM
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Ditto, in the distributor.

You can check the coil with a meter.

Sequence:
- pickup coil sends signal to ecu
- ecu sends signal to ignitor
- the ignitor maintains a current to one loop in the coil and then drops it upon signal from the ecu.
- the drop current on one side of the coil, causes the field to collapse, the collapsing magnetic field induces a high voltage to the other loop that leads to the distributor.

If any of the pigtails on any of these parts fails, then problems. Try there first. Then check the ignitor. The ignitor is a tricky item to check requiring an ability to generate 2 voltages to simulate the operating environment.
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