bigrak

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.

ajm8127

iTrader: (8)

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.

bigrak

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.

KRRZ350

iTrader: (29)

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.