90 240SX NO INJECTOR PULSE

[Deucebag]

dirt mini stock, have spark and fuel pressure and injector power. no ground pulse out of ecm. What can prevent this besides a defective ecm? Any sensor that cut injectors?

Does ecm use same signal from CAS that it uses to provide spark?

Tried neutral switch grounded and open... have a ground from block to chassis, all ecm powers and grounds are connected directly. Car fires with fuel sprayed in intake.
Thanks

[centralcoaster33]

Hi there, any progress on this project? I saw your other thread. Seems interesting.

[Deucebag]

We found one power was in fact missing to the ecm. All gd now, cheers!