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No spark

Tiny
MECANICO3
  • MEMBER
  • 2007 NISSAN QUEST
  • 3.5L
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 95,000 MILES
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?
Friday, September 29th, 2017 AT 10:25 AM

6 Replies

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 43,356 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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Sunday, October 1st, 2017 AT 11:40 AM
Tiny
MECANICO3
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  • 31 POSTS
Thank you very much will get back at it tomorrow.
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Monday, October 2nd, 2017 AT 5:28 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 43,356 POSTS
Please let us know what happens so it will help others.

Cheers, Ken
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Tuesday, October 3rd, 2017 AT 10:29 AM
Tiny
MECANICO3
  • MEMBER
  • 31 POSTS
Ecm relay is good but still not getting pulse to injectors
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Tuesday, October 3rd, 2017 AT 3:41 PM
Tiny
MECANICO3
  • MEMBER
  • 31 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.
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Tuesday, October 3rd, 2017 AT 3:59 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 43,356 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
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Wednesday, October 4th, 2017 AT 11:53 AM

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