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P0405 Diagnostic Trouble Code Discussion for September 2013

EGR Position Sensor Circuit Low Voltage

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Trouble Ticket Help Requests for DTC P0405
Help Request Posted
1999 Saturn SL 1.9L MIL Lamp on, erratic idle@coldsta VIN: 1G8ZF5281X
P0405: EGR sensor A circuit low. Received this vehicle last week with CEL on. Customer stated engine idles erratically and revs up,especially when cold. Was told by service advisors that everyone at the shop has tried to fix this without success and ticket was given to me. The EGR valve has b...
September 23, 2013