Finally got around to putting my built engine and trans back in the truck. Has a 10mm cp3 and stock injectors. Been trying for 3 days to get it started. Won’t build more than like 65 psi of fuel rail pressure. Only codes it has is for the ac pressure switch cause I don’t have the core support in or any Freon in it yet.
Things I’ve done:
Pinched injector return line with vice grips, also tried air pressure from air compressor.
Verified cam and crank signal seems to be good.
It’s getting fuel to the rails and injectors, just not pressurized.
Has 8psi of lift pump pressure and good solid flow direct to cp3.
Will hit on a very minimal shot of ether.
Pulled the driver side rail pressure relief regulator out, doesn’t seem like its stuck open or gummed up.
Made sure I have the right plugs in the right places, and also swapped the regulator plugs around . Have the plug with yellow and black wires on the pump, yellow and purple on the rail.
I’m not sure where to go from here. Did notice when I put air pressure on the injector return line I had atleast one injector that was leaking air from the return fitting thing. Kinda got it sealed up better but I think it still leaks a little. Thinking I may get a new injector return assembly and new o rings. New O rings were just put on when the engine was assembled though.
Not letting me post the videos but I have a couple short clips showing live data while cranking if that helps anyone.
Things I’ve done:
Pinched injector return line with vice grips, also tried air pressure from air compressor.
Verified cam and crank signal seems to be good.
It’s getting fuel to the rails and injectors, just not pressurized.
Has 8psi of lift pump pressure and good solid flow direct to cp3.
Will hit on a very minimal shot of ether.
Pulled the driver side rail pressure relief regulator out, doesn’t seem like its stuck open or gummed up.
Made sure I have the right plugs in the right places, and also swapped the regulator plugs around . Have the plug with yellow and black wires on the pump, yellow and purple on the rail.
I’m not sure where to go from here. Did notice when I put air pressure on the injector return line I had atleast one injector that was leaking air from the return fitting thing. Kinda got it sealed up better but I think it still leaks a little. Thinking I may get a new injector return assembly and new o rings. New O rings were just put on when the engine was assembled though.
Not letting me post the videos but I have a couple short clips showing live data while cranking if that helps anyone.
