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P1312 Diagnostic Trouble Code Discussion for January 2007

Exhaust Gas Temperature Sensor Malfunction

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Trouble Ticket Help Requests for DTC P1312
Help Request Posted
2002 Isuzu Trooper Limited 3.5L MIL Lamp on VIN: JACDJ58X82
P1312: ION Sensing Module Secondary Line 2 Circuit Malfunction. ... accelerating. Codes P1312 and P0300 indicating misfires but seems to run well. I found corrosion on one coil secondary terminal which I cleaned off with wire brush. Also found 5 new-looking Bosch Platinums and 1 old-looking Champ...
January 20, 2007