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  #1   IP: 68.47.125.47
Old 07-19-2010, 05:44 PM
08twinturbo's Avatar
08twinturbo 08twinturbo is offline
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Default trouble code p2084

what causes this code? p2084 egt sensor circuit/range performance bank 1 sensor 2. my truck has a 275 v3 with 8500 miles. i cleared the first code which was "insufficient flow detected" and it stayed off. now i cleared this one and it is off for now. my truck sits alot and i was wondering if this triggers this.
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  #2   IP: 68.213.43.58
Old 07-19-2010, 06:31 PM
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08stroker250 08stroker250 is offline
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Description: The powertrain control module (PCM) monitors the exhaust gas temperature (EGT) sensor for a biased signal value. Following an 8-hour soak, the PCM records the EGT sensor temperature value at key ON, engine OFF. After several minutes of vehicle operation at vehicle speeds greater than 40.2 km/h (25 mph) the PCM calculates an expected key ON, engine OFF value. The PCM determines what the expected EGT value at key ON, engine OFF should have been based on inputs from other sensors. The test fails when the difference between the expected calculated value and the actual recorded value is greater
than 40C (72F).

Possible Causes:
Corrosion or poor mating terminals and wiring
Extreme changes in ambient temperature soon after key ON, engine running
Damaged EGT sensor

Diagnostic Aids: Compare the EGT PID to the ambient temperature on a cold vehicle.
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