0173 V6 PCM Short Term Fuel Trim Delta High
• Lean or faulty injector(s) on one side of the engine.
• Cracked or fouled spark plug(s).
• Exhaust or inlet manifold leak.
• Make sure oxygen sensor leads are not swapped.
0342 V6 PCM Camshaft Position Sensor Signal Missing
An intermittent may be caused by a poor connection, rubbed through wire insulation, or a wire broken inside the insulation. Check for:
• Poor Connection or Damage Harness - Inspect PCM harness connectors for backed out terminal "B6", improper mating, broken locks, improperly formed or damaged terminal, poor terminal to wire connection and damaged harness.
• Intermittent Test - If connections and harness check OK, monitor a digital voltmeter connected from PCM terminal "B6" to earth while moving related connectors and wiring harness. If the failure is induced, the voltage reading will change. This may help to isolate the location of the malfunction.
1361 V6 PCM Ignition Bypass Circuit Fault (should illuminate the "Check Powertrain" lamp)
• Poor connection at PCM. Inspect harness connectors for backed out terminals, improper mating, broken locks, improperly formed or damaged terminals, and poor terminal to wire connection.
• Damaged Harness. Inspect the wiring harness for damage. If the harness appears to be OK, disconnect the ignition module, turn the ignition "ON". Connect and observe a voltmeter connected between the Bypass control circuit and B+, while moving connectors and wiring harness related to the ignition module. A change in voltage will indicate the location of the fault.