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No start 1995 Celica 2.2

  • Jack Flash
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11 Jun 2019 12:54 #30592 by Jack Flash
No start 1995 Celica 2.2 was created by Jack Flash
1995 celica 2.2l GT no spark. I can make the coil spark from the white wire at the igniter or the yellow wire at the dist. The customer has bought two distributors and two different igniters all act the same. I have had the car running but dies after a few mins and then will sometimes start but mostly not. The tach is not bouncing when not starting, and the times I had it running the tach would fall drastically when the car started to die after only a few mins of running.

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11 Jun 2019 15:22 #30596 by chief eaglebear
Replied by chief eaglebear on topic No start 1995 Celica 2.2
hi sir not super experienced but what your describing is classic c rank signal cutting out I cannot get anything on bbb so it helps us to put diagram up for quik reference and help with that circuit

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11 Jun 2019 15:38 - 11 Jun 2019 15:44 #30599 by jreardon
Last edit: 11 Jun 2019 15:44 by jreardon.

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11 Jun 2019 16:41 - 11 Jun 2019 17:10 #30600 by jreardon
Replied by jreardon on topic No start 1995 Celica 2.2
Check if control signal from computer on IGT wire is present at the igniter (backprobed), if not there during cranking then check it again at the computer. If not there check the cam crank signals coming out of distributor to computer.
Last edit: 11 Jun 2019 17:10 by jreardon.

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11 Jun 2019 18:13 #30605 by John Curtis
Replied by John Curtis on topic No start 1995 Celica 2.2
Is it no spark and no fuel at the same time?

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12 Jun 2019 09:04 #30617 by Jack Flash
Replied by Jack Flash on topic No start 1995 Celica 2.2
I have Injector signal at the injector(gas smell when cranking). No signal at the igniter white wire when cranking, I do have signal at ecm from cam and crank sensors. Where i am confused is I can make the coil fire from the yellow wire (NE) at the distributor connector which would usually indicate that the ecm is telling the igniter to fire.

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12 Jun 2019 12:25 - 12 Jun 2019 12:29 #30620 by jreardon
Replied by jreardon on topic No start 1995 Celica 2.2

Jack Flash wrote: No signal at the igniter white wire when cranking

Is there a signal at the white wire backprobed at the computer? Or simply try to make it spark with a test light at the computer harness. I'm thinking bad wire somewhere.

edit: nevermind, your test "I can make the coil fire from the yellow wire" means white wire is fine.
Last edit: 12 Jun 2019 12:29 by jreardon.

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12 Jun 2019 12:55 - 12 Jun 2019 13:12 #30621 by John Curtis
Replied by John Curtis on topic No start 1995 Celica 2.2
From the above information I think I would check the cam gears with an inspection camera.
Last edit: 12 Jun 2019 13:12 by John Curtis.

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12 Jun 2019 13:33 #30625 by Jack Flash
Replied by Jack Flash on topic No start 1995 Celica 2.2
Thanks everyone for the responses, John Curtis I had the car running at one point, ran good, after a few mins it died, several attempts to restart it restarted and it did the same, died after a few mins. At that point I thought I was loosing the signal from the distributor because the tach would fall right before it died. so, I had the owner swap the dist under warranty and since then I haven't been able to get it restarted. I guess the real question is ... does anyone here think I am dealing with a bad ecm?

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12 Jun 2019 15:07 - 12 Jun 2019 17:05 #30627 by John Curtis
Replied by John Curtis on topic No start 1995 Celica 2.2
Since you smell gas, I don’t think you have an input problem. It sounds like an output problem. The computer commands the ignition and the ignitor commands the coil. The system uses IGF as your confirmation which I think is pull-down.

Since the tach isn’t bouncing while you’re cranking I think you should verify wiring integrity between ecm and igt.

Test for voltage at igt and ground at ecu while cranking. Write down your findings and see if it’s within spec.
Last edit: 12 Jun 2019 17:05 by John Curtis.

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12 Jun 2019 16:57 - 12 Jun 2019 16:58 #30629 by Jack Flash
Replied by Jack Flash on topic No start 1995 Celica 2.2
IGT has 6.0 volts while cranking at ECM and at igniter, and the e01 and e02 circuit (wht/blk) at ECM has .32v while cranking , grounded when not cranking using a power probe to test. what is the specs?
Last edit: 12 Jun 2019 16:58 by Jack Flash.

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13 Jun 2019 13:20 #30643 by John Curtis
Replied by John Curtis on topic No start 1995 Celica 2.2
IGT should be 1V-4.5V

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