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99 Toyota 4 Runner no spark

  • Bigfoote13
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8 years 4 weeks ago #15810 by Bigfoote13
99 Toyota 4 Runner no spark was created by Bigfoote13
Greetings. On this Toyota I have no spark. I get an RPM signal on my scan tool but no signal to the RPM gauge and cam sensor continuity checks out okay. I had spark once for a little bit but then no longer. I have 12 volts to the coils but don't seem to get any signal to the crank sensor. Is the crank sensor connector on these motors on top of the motor behind the timing belt cover and goes down in the front behind the timing belt to the crankshaft sensor?

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8 years 4 weeks ago #15824 by Chad
Replied by Chad on topic 99 Toyota 4 Runner no spark
What engine?
"Knowledge is a weapon. Arm yourself, well, before going to do battle."
"Understanding a question is half an answer."
I have learned more by being wrong, than I have by being right. :-)

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8 years 4 weeks ago #15825 by Bigfoote13
Replied by Bigfoote13 on topic 99 Toyota 4 Runner no spark
3.4 sorry

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8 years 4 weeks ago #15829 by arbez
Replied by arbez on topic 99 Toyota 4 Runner no spark
Waste spark system with 2 Wire coils. You should have power to the coils with the key on (same color wires). Different color wires controlled by igniter, controlled by PCM. Should be able to check with a test light.

Let us know what your missing & we will go from there.

Do you have a test light, multi meter or scope? Just so we know how to advise you.

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File Name: 4RunnerIgnition.pdf
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8 years 4 weeks ago #15833 by Bigfoote13
Replied by Bigfoote13 on topic 99 Toyota 4 Runner no spark
Yes I do all of the above. And the igniters in the coils isn't it? No that would be in the PCM? Thank you for your advice.

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8 years 4 weeks ago #15835 by arbez
Replied by arbez on topic 99 Toyota 4 Runner no spark
Your response confuses me.

Is your engine the 5VZ-FE or the 3RZ-FE? I didn't realize the wiring diagram covered 2 different systems.

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8 years 4 weeks ago #15837 by Bigfoote13
Replied by Bigfoote13 on topic 99 Toyota 4 Runner no spark
5VZ-FE

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8 years 4 weeks ago #15838 by arbez
Replied by arbez on topic 99 Toyota 4 Runner no spark
So you have 3, 2-wire coils?

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