Hello I need help! First time I started a conversation hope I did it right. I have a 97 peterbilt with a 6ts cat. Cranks but won't fire no smoke out the stacks. I've replaced cam sensor, fuel check valve, fuel transfer pump and swapped the ecm. I have power on pin 4 and switch power on pin 6. Ground on pin 5. When cranking fuel pressure gauge in the truck will slowly rise to 70 psi. Truck will run on starting fluid then die. Had a mechanic hook a computer to it and he couldn't find any codes other than a coolant sensor.