motor locked up on test startup found fuel on top of no.4 piston suggestions?
- Thread starter jusapayne
- Start date
Could be a leaking injector. I'd keep the plug out and let it air out.
Best get would either be to have the injectors flow tested and cleaned to see if that was the issue or find another injector.
Hopefully no damage was done when it stopped.
Best get would either be to have the injectors flow tested and cleaned to see if that was the issue or find another injector.
Hopefully no damage was done when it stopped.
Pull the efi fuse and pull all the plugs then crank it over a few times to clear out the cylinders. I say pull all the plugs so the starter will run over faster. You could always swap injectors to see if it does it again.
Thanks to both of you for responding. This is our first supra experience. We have an 87 7mgte with the r154 trans and an 89 parts car with the 7mgte and w58 (someone converted it from an auto.) Sons first car and i'm trying to get it running before his birthday. Already went through several wiring issues. Still don't have the fuel pump wiring working. Had a bad ground on E1 at the ecm preventing the efi relay pull down. fixed that and have been using the diagnostic bypass for now to run the pump. Can't seem to get the open circuit relay to pull down in the right hand kick panel. Going to double check the timing marks when I get home today and put all six injectors in with new seals and Vaseline. Thanks for the tip about clearing the cylinders. will post results when the car is running.
Car started finally but we have raw fuel coming out on the exhaust manifold (visually see it) and the car seems to be missing on one cylinder. Will be checking for spark today and compression. Also going to check the normals - wires, spark plugs, wires. Any suggestions would be appreciated. So close now we can taste it. Literally!
Check the coils visually for cracks. Top side and bottom side. Make sure the coil pack is grounded to the head still.
Ground good to coil. Compression good on all cylinders. Al ohm checks good on injectors and coil. Performed a spark plug test on the coil and no.1 sparked once and no more, 6 sparked to what i would call normal, 3 and 2 acted like one, 4 and 5 acted like 6. Not sure i'm testing them like the manual said. not sure what the solenoid resistor is. One for the fuel pump or the efi resistor? Will check for cracks and probably change the coil out with spare one from the parts car and test again.
http://www.cygnusx1.net/Supra/Library/TEWD/MK3/
Your best friend when chasing electrical gremlins, the tsrm is also there if you weren't aware of the site.
Make sure your circuits/relays are working as per tewd and then work on fixes from there.
Your best friend when chasing electrical gremlins, the tsrm is also there if you weren't aware of the site.
Make sure your circuits/relays are working as per tewd and then work on fixes from there.