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1991 Toyota Camry no fire to plugs

Tiny
MATER007
  • MEMBER
  • 1991 TOYOTA CAMRY
My car was running fine then just died, I have had the igniter tested and have changed the entire distributor new coil the works, the coil gets power on both sides but will not fire through the rotor.I have checked all the wires for grounding problems only thing I havent changed is the computer I was told that they hardly ever go out but I dont know.I'm thinking of a burning rag if I can't figure this out HELP please.
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Friday, November 20th, 2009 AT 9:32 AM

7 Replies

Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
Hi mater007,

Thank you for the donation.

Did you check if the rotor is turning when cranking the engine? A bad timing belt would not turn the distributor and this would cause a no spark condition.

As you have replaced the distributor, the next thing to check would be the ignition switch and computer.

Test for power supply to the distributor while cranking the engine. A bad ignition switch might provide power to the coil in the ON poaisiton but no power supply when in the START position.
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Monday, February 22nd, 2021 AT 10:53 AM
Tiny
MATER007
  • MEMBER
  • 4 POSTS
Yes the rotor is turning, the timing belt looks fine.I have checked both sides of the coil while the engine was being turned, the coil stays hot. The low side does not break or flash the test light like it should when the engine is turned
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Monday, February 22nd, 2021 AT 10:53 AM
Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
The distributor is not pulsing to fire the ignition coil.
Possible cause would be the ignitor and/or PCM causing the problem.

Did you do the ignitor test yourself?

Is the Check engine light showing?

Did you try to retrieve for trouble codes?
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Monday, February 22nd, 2021 AT 10:53 AM
Tiny
MATER007
  • MEMBER
  • 4 POSTS
I was told when the car first died that it was probably the igniter so I took it off and took it to a local shop where the tec tested for me. When I removed the igniter I disconnected the battery when I reinstalled the igniter and reconnected the battery the check engine light did not come back on and hasn't yet not even when the key is ON and not in the START position.
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Monday, February 22nd, 2021 AT 10:53 AM
Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
You would have to check why the CEL is not indicating when ignition switch is turned ON.


https://www.2carpros.com/forum/automotive_pictures/192750_DiagnosticCircuitCheckFig05_1.jpg



https://www.2carpros.com/forum/automotive_pictures/192750_DiagnosticCircuitCheckFig06_1.jpg

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Monday, February 22nd, 2021 AT 10:53 AM
Tiny
MATER007
  • MEMBER
  • 4 POSTS
I followed the schematic directions as to how to check the CEL when I grounded the wire that comes from the CEL to the ECU to the frame the CEL came on.I then grounded the E1 terminal in the data link directly to the battery the CEL still did not glow.
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Monday, February 22nd, 2021 AT 10:53 AM
Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
The ECU or its witing is faulty and not grounding the circuit.

Recheck the ECU wire connectors and termnals for contaminations. If none found, you would have to get an ECU to test.
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Monday, February 22nd, 2021 AT 10:53 AM

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