Hey guys,
I know this topic has been beat to death and I've gone through the entire checklist in this thread.
I swapped a 5.0HO out of a 1988 mustang GT into a 1969 mustang. I had wired it up but it just seems to crank without starting.
I worked my way through the checklist and ended up doing the following:
- replaced TFI and PIP sensors
- replaced coil, rotor and distributor cap
- replaced spark plugs
Still nothing after those.I'm getting about 40PSI of fuel pressure aswell. I checked the plugs to see if I'm getting spark and it let off a nice fat spark off the block. I checked the injector with a noid light and it's pulsing while cranking. all my grounds are secure and tested. I have a running 5.0HO in my rx7 which I used to test the computer, EEC power relay, distributor and mainly as a reference for the wiring. I'm getting compression on the pistons (145psi across the board). I tried cranking it with some quick start and it backfired through the intake manifold.
I went through the list again and figured it must be the timing. So I set the harmonic balancer to TDC and made sure the piston was at its compression stroke aswell. The rotor is pointing at cylinder #1 so timing is set to the point where it should atleast run. I'm at a complete loss as to what could be preventing it from firing. I've read a few threads on here with similar issues and have tried cleaning all of the connections, doublechecking the firing order for the HO engine, going through all the wiring again to ensure it was done properly and nothing I'm doing is working. The donor car was supposed to be stock apart from some hedman shorty headers.
Any ideas?
I know this topic has been beat to death and I've gone through the entire checklist in this thread.
I swapped a 5.0HO out of a 1988 mustang GT into a 1969 mustang. I had wired it up but it just seems to crank without starting.
I worked my way through the checklist and ended up doing the following:
- replaced TFI and PIP sensors
- replaced coil, rotor and distributor cap
- replaced spark plugs
Still nothing after those.I'm getting about 40PSI of fuel pressure aswell. I checked the plugs to see if I'm getting spark and it let off a nice fat spark off the block. I checked the injector with a noid light and it's pulsing while cranking. all my grounds are secure and tested. I have a running 5.0HO in my rx7 which I used to test the computer, EEC power relay, distributor and mainly as a reference for the wiring. I'm getting compression on the pistons (145psi across the board). I tried cranking it with some quick start and it backfired through the intake manifold.
I went through the list again and figured it must be the timing. So I set the harmonic balancer to TDC and made sure the piston was at its compression stroke aswell. The rotor is pointing at cylinder #1 so timing is set to the point where it should atleast run. I'm at a complete loss as to what could be preventing it from firing. I've read a few threads on here with similar issues and have tried cleaning all of the connections, doublechecking the firing order for the HO engine, going through all the wiring again to ensure it was done properly and nothing I'm doing is working. The donor car was supposed to be stock apart from some hedman shorty headers.
Any ideas?