RX7 550 injectors - newly cleaned & tested
Removed & replaced my engine/tranny to install a turbo setup. It won't fire up because the injectors aren't pulsing. Tried the stock ecu & my MSPNP, with the same results from both.
I verified spark by pulling the #1 wire and plug and observed spark while cranking. Did the same for #2, so both coils are definitely firing.
Fuel is getting to the rail, and the lines aren't reversed.
The MSPNP primes the pump at key on, stock ecu doesn't, but honestly I don't know if it's supposed to. With the stock ecu, jumpering FP to GND in the diag box activates the pump at key ON, but the injectors still don't fire while cranking.
I went as far as pulling the fuel rail, and watching it while cranking, and there injectors aren't firing at all.
All fuses in engine bay and under the dash check ok, and I swapped the fuel injection relay with the fan relay, but there was no change in symptoms.
The check engine light is on, which I've never had before, but when I jumper TEN to GND, and turn the key to ON, the light goes out after about 5 seconds, and does not flash any codes.
A few days ago when I put the engine back in, I pulled the fuel injection relay and cranked the car to prime the oil feed to the turbo and didn't see the check engine light, so it's strange that it's on now.
So what signal is the ecu not seeing that's keeping these damn injectors from firing?
Should I data log the MSPNP while cranking, will that help with troubleshooting?
I'm in a time cruunch with this car, I've got until next Wednesday night to get it running for a road trip, and I'm away this weekend.
Thanks in advance for any help.