I work at a shop here in Akron, Oh. We have a 1999 Chevy 3500 1 ton and the engine blew up. We got a new engine and put it all back together. I know for a fact that the Dual battery system was hooked up backwards and we fixed all the problems to that. Right now though it is saying the Cam and Crank sensor can't talk to each other. We replaced all the wiring to the sensors and the Pcm( which was also replaced and re flashed). Anyone have any suggestions?
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Apr 22, 2011 - '96 dodge 2500 transmission is having trouble staying in overdrive. ... Hetold me it could be the Throttle Position Sensor, the computer needs ... Oh and another thing, The brake safety for shifting out of park is .... 95 chevy 3500 6.5l trans issues, drgracen, Chevy/GMC 6.2L and 6.5L, 1, 10-05-2015 10:13 PM.
For the ECM 1 fuse to open you obviously have a short to ground , start with the injector disconnected and see if ECM 1 fuse still blows.If it does disconnect crank sensor, also inspect wires for the injectors or any rub through wires here is a diagram
the fuel pump operates off the oil pressure switch the first 5 seconds upon starting. to test turn the key to the on position and listen for the fuel pump running. it does this to prime the pressure up and to stat the engine if not heard replace the oil switch. the way this operates is when the engine reaches full oil pressure the computer shuts off the oil switch and turns on the fuel pump relay to continued the circuit to the pump
it is best to remove the pwr st. pump and vaccum pump assy as a unit which is held to the front cover w/2 15mm head bolt and a support bracket on the bottom bolt next to the block @ the pwr st pump. and disconnect all lines. get the seal kit and replace them @ this time. if you don't and just replace the pump you will probably develop an oil leak where the shaft meshes w/ the adapter.