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?
