Question about 1996 Saturn SC
Engine cranks but will not start. No link to PCM with scan tool. Have replaced PCM with new. Have spark during cranking. Can hear Fuel pump and fuel pump relay. Air intake is free from obstruction. I am looking for a wiring diagram for the PCM to verify power.
Spray Ether in the air intake...if it doesn't start then, I would suspect the timing chain.
Posted on Oct 11, 2009
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Posted on Jan 02, 2017
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The PCM has been replaced
The engine has been replaced
The crankshaft has been replaced
The crankshaft harmonic balancer has been replaced
The crankshaft position sensor has been replaced
Important: Set the vehicle parking brake and block the drive wheels when performing the crankshaft position system variation learn procedure in order to prevent personal injury. Release the throttle when the engine reaches the SECOND fuel cut off. Leaving the throttle open during the fuel cut-off will allow the engine to decel at an even rate. Once the learn procedure is completed, the PCM will return the engine control to the operator and the engine will respond to the throttle position.
Important: The scan tool crankshaft position system variation learn function will be inhibited if engine coolant temperature is less than 70?°C (158?°F). Allow the engine to warm to at least 70?°C (158?°F) before attempting the crankshaft position system variation learn procedure.
The scan tool crankshaft position system variation learn function will be inhibited if any powertrain DTCs other than DTC P1336 are set before or during the crankshaft position system variation learn procedure. Diagnose and repair any DTCs if set.
The crankshaft position system variation learn function will be inhibited if the PCM detects a malfunction involving the camshaft position signal circuit, the 3X reference circuit, or the 18X reference circuit.
If the scan tool indicates a problem with the cam signal, refer to DTC P0341 .
If the scan tool indicates a problem with the 3X crank signal, refer to DTC P1374 .
If the scan tool indicates a problem with the 18X crank signal, refer to DTC P0336 .
Now why do you want to replace these thing's ? mite be able to save you some time an money. Do you have a check engine light lit ? Codes ? Does it start an run ?
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