ECM Problem?

ONLY for ADVANCED technical discussion about the 240sx!
mjlewis422
Posts: 8
Joined: Wed Feb 06, 2013 2:53 pm

Post

I have a 91 Nissan 240SX that's stuck in fail safe mode because of a knock sensor code.

I installed a new knock sensor and wiring sub-harness (both tested good)
I tested the continuity from the ECM to the knock sensor connector (good continuity)

When I test the voltage at terminal 27 for 2.5V (page EF & EC 157) I'm not getting any voltage.

Does that mean I need to change the ECM? If not, what does it mean?


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