I have a 1997 Maxima Se 5 speed . No spark and injector pulse on cyl. 1,2 & 4. Swapped coils and Changed both crank sensors . tested cam sensor. I tried another ECM and but no go. Any help? Anyone with this same problem before? Thank you.

 

Make sure the wires running from the ECU to the coil/injectors are good. I think there was a TSB on these cars about wires breaking or something in the main engine harness.

 

Thanks for your reply. I saw the sticky for the pin out and tested fine. I have the pos. and neg. feed at the coil connectors as well. Tried another ecm. and still no pulse while cranking. Any other ideas would be appreciated.

 

Any recent timing chain related work, waterpump, or sitting for an extended period? AFAIK timing off causes no fire on cylinders 2 & 3 but who knows.

Do you have an OBD-II reader? Any codes or pending codes?

I'm assuming you're using a noid light to check for injector pulse?

I get the feeling you've already done these, but just a reminder- clean all your grounds esp. the manifold ones, and make sure battery is fully charged. Inspect the rubber damper & nubs on the crank pulley as well.