98 3.4 won't start, has codes for maf and igniter
#1
98 3.4 won't start, has codes for maf and igniter
98 3.4 truck had a fire, I replaced the entire dash and body harness. Everything works, fuse and relay centers were replaced too but the truck will crank and barely run for a few seconds before puttering out.
There are codes for maf and igniter. Both are getting power. I swapped them with known good units from another truck. I ohmed out the wires back to the PCM and they were good.
I know I am missing something. Not sure what.
Also, the truck did not have cruise control. The new harness is from a truck with cruise. Could that be an issue?
Could the harness have a different pin out?
There are codes for maf and igniter. Both are getting power. I swapped them with known good units from another truck. I ohmed out the wires back to the PCM and they were good.
I know I am missing something. Not sure what.
Also, the truck did not have cruise control. The new harness is from a truck with cruise. Could that be an issue?
Could the harness have a different pin out?
#4
I used a harness from the same year. I replaced body and engine harness. I bought another PCM and it didn't change anything.
I seem to be getting power to the maf and igniter which indicates the circuit opening relay is working, correct?
I seem to be getting power to the maf and igniter which indicates the circuit opening relay is working, correct?
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#8
#10
The wiring for that comes directly through the engine harness that you replaced. Its possible that your new harness may have been early 99 in which case the pin out at the maf plug would be slightly different. However the Igniter pin out at the plug I believe is the same. Are you sure you have all your grounds hooked up on the harness? Maybe both maf and Igniter are missing the grounds it needs from the ecu which it gets from the engine harness.
Try starting and running the rig on starting fluid. If it will cough sputter run then we can at least know its not getting fuel.
Try starting and running the rig on starting fluid. If it will cough sputter run then we can at least know its not getting fuel.
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