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P0405 Diagnostic Trouble Code Discussion for October 2007

EGR Position Sensor Circuit Low Voltage

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Trouble Ticket Help Requests for DTC P0405
Help Request Posted
1998 Chevrolet S10 LS 2.2L MIL Lamp on VIN: 1GCCS1942W
P0405: EGR Position Sensor Circuit Low Voltage. ... won't go away. I have changed everything that has to do with the EGR codes. 1st time in P0405 code stored ... changed the valve - customer came back a week later - light back on... now a P0404 stored? Have changed the EGR valve, tube & seal? What am I ...
October 24, 2007