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Nissan sentra gxe: cranks..no spark no injection pulse i..ecm..stumped…

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i have an 02 nissan...
i have an 02 nissan sentra gxe it cranks but no start no spark no injection pulse i have checked power and grounds at the ecm i can not communicate with my scanner either i have been a tech 4 22yrs i am stumped
Submitted: 12 years ago.Category: Nissan
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Answered in 19 minutes by:
11/9/2010
Nissan Mechanic: Nissan Specialist, ASE Certified Technician replied 12 years ago
Nissan Specialist
Nissan Specialist, ASE Certified Technician
Category: Nissan
Satisfied Customers: 29
Experience: Nissan SCOPE Electrical Specialist, Nissan SCOPE Engine Specialist, Nissan SCOPE Senior Specialist
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Nissan Specialist :

foam

Nissan Specialist
Nissan Specialist, ASE Certified Technician
Category: Nissan
Satisfied Customers: 29
Experience: Nissan SCOPE Electrical Specialist, Nissan SCOPE Engine Specialist, Nissan SCOPE Senior Specialist
Verified
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Nissan Mechanic: Nissan Specialist, ASE Certified Technician replied 12 years ago

You need to replace the ECM. They go out on these all the time. There was a recall to remove the foam inside the ECM case, but they go bad whether the recall was done or not. A good tell tale sign is not being able to communicate with a scan tool.

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Nissan Mechanic: Nissan Specialist, ASE Certified Technician replied 12 years ago
Anything else?
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Customer reply replied 12 years ago

I accepted that answer and you were right on On a nissan quest i have two codes a p0139 and a p0138 oxygen sensor codes and i have replaced the rear sensor twice.

Nissan Mechanic: Nissan Specialist, ASE Certified Technician replied 12 years ago

Let me do a little research and I'll get back with you on that. What year is it?

 

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