Having issues with grimlings appearing into this build, current mileage 227k on original motor. Started all 4 cylinders misfiring on bank 1. Moved plugs, coil packs, injectors, nothing changed. Pulled compression and got 60lbs, was told “you have internal issue”, decided to split block apart and have a look. Only had 1 minor sticky valve on driver head, still had factory hash marks on cylinder walls, no scratching on cam, crank, nothing. So we bore block .20 over, 4340 forged eagle crank, 32t reluctor wheel, 112-500-11 comp cam, h-beam connecting rods, springs, valves, seats, re-serviced heads. After build was told “ pcm “ replace with new vin programmed, didn’t fix, new injectors, didnt fix, setup tune through diablo with specs on build, truck won’t idle run it down road pull data, review through tune setup, guy says “ everything looks good “. Truck has no power falls flat on its face. Now guys say it’s engine harness “ mind you been discontinued since 2015 for 2007 “ no aftermarket is made either. Checked camshaft and crank sensors “ both good “. Did however find driver o2 fault due to no power signal fixed that with piggybacked wire tapping. Anything I might’ve over looked or potentially should or could try ???? All and any help will be appreciated.
Oh boy... There's a lot of specifics missing in this whole scenario. That's pretty tame camshaft, so it shouldn't give you much trouble. Where did you set the intake centerline when you degreed it? Wh
Having issues with grimlings appearing into this build, current mileage 227k on original motor. Started all 4 cylinders misfiring on bank 1. Moved plugs, coil packs, injectors, nothing changed. Pulled compression and got 60lbs, was told “you have internal issue”, decided to split block apart and have a look. Only had 1 minor sticky valve on driver head, still had factory hash marks on cylinder walls, no scratching on cam, crank, nothing. So we bore block .20 over, 4340 forged eagle crank, 32t reluctor wheel, 112-500-11 comp cam, h-beam connecting rods, springs, valves, seats, re-serviced heads. After build was told “ pcm “ replace with new vin programmed, didn’t fix, new injectors, didnt fix, setup tune through diablo with specs on build, truck won’t idle run it down road pull data, review through tune setup, guy says “ everything looks good “. Truck has no power falls flat on its face. Now guys say it’s engine harness “ mind you been discontinued since 2015 for 2007 “ no aftermarket is made either. Checked camshaft and crank sensors “ both good “. Did however find driver o2 fault due to no power signal fixed that with piggybacked wire tapping. Anything I might’ve over looked or potentially should or could try ???? All and any help will be appreciated.