No spark

2007 NISSAN QUEST

95,000 MILES • 3.5L • 6 CYL • 2WD • AUTOMATIC

MECANICO3

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32 POSTS
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My vehicle is not getting pulse reading on all injectors therefor not starting. Cam's and crank sensor are good. Any ideas or opinions? All fuses are good. Anyway that I can get a wiring diagram of ecm, engine fuse box and fuel injectors?

Sep 29, 2017 at 10:25 AM

STRAILER

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53,854 POSTS

There is an ECM relay I would check along with the fuses.

Here are some guides with the diagrams you needed (below) so we can get started testing to fix the problem:

https://www.2carpros.com/articles/how-to-check-an-electrical-relay-and-wiring-control-circuit

and

https://www.2carpros.com/articles/how-to-use-a-test-light-circuit-tester

Please let us know what happens and upload pictures or videos of the problem.

Cheers, Ken

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Oct 1, 2017 at 11:40 AM

MECANICO3

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32 POSTS

thank you very much will get back at it tomorrow.....

Oct 2, 2017 at 5:28 PM

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Please let us know what happens so it will help others.

Cheers, Ken

Oct 3, 2017 at 10:29 AM

MECANICO3

MEMBER
32 POSTS

ecm relay is good but still not getting pulse to injectors

Oct 3, 2017 at 3:41 PM

MECANICO3

MEMBER
32 POSTS

there is voltage on injectors but not getting the pulse on all six injecs.....since i do not possess a diagnostic tool with live data i can not check ECM or why its not sending ground to signal wire......so to me it has to be the Ecm and nothinh else...

Oct 3, 2017 at 3:59 PM

STRAILER

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53,854 POSTS

If all of the wiring and connection are good then yep I agree, you will need it programmed here is the location.

Let us know what happens

Cheers, Ken

Image (Click to enlarge)

Oct 4, 2017 at 11:53 AM