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P0406 Diagnostic Trouble Code Discussion for June 2007

EGR Position Sensor High Voltage

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Trouble Ticket Help Requests for DTC P0406
Help Request Posted
1996 Chevrolet K1500 6.5L MIL Lamp on VIN: 2GCEK19S8T
P0406: EGR Control BARO Sensor Circuit High Voltage. hi guys, have this chevy truck with a head scratching code PO406. EGR sensor circuit high. this uses a map sensor to watch vacuum to egr. 7" at idle 20" driving with little throttle, when turbo builds boost egr vacuum drops to 0" is this right? on ...
June 20, 2007