280Z rebuilt fuel system - engine just stops!!!

[SteveJ]

41 minutes ago, widget777 said:

Not sure what you are asking. My phone is XXX-XXX-XXXX if you want to chat.

I advise removing your phone number from posts. That only invites scammers and spammers to track you down.

[Zed Head]

I don't think that that diagram is for a 1978.  Pre-78 Nissan did have a water temperature switch for the dual point distributors.  But 78 uses the single point distributor.  And the EGR system uses a heat activated siwtch.

The quickest way to narrow things down is to get the voltage measurements from the coil, both positive and negative posts (the coil circuit could be overheating and going open), and the injectors.  If it cranks but doesn't start those two elements are most likely to be the cause.  No spark or no fuel.

Carry the meter and/or noid lights in the car.  Measure voltages then insert a noid light if you have injector power.  A bad PCM is still a possibility.