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P1402 Diagnostic Trouble Code Discussion for April 2009

EGR System Malfunction Detected (Open)

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Trouble Ticket Help Requests for DTC P1402
Help Request Posted
2000 Mazda Millenia 2.5L MIL Lamp on, P1402
P1402: EGR Valve Position Sensor Circuit Malfunction. ... P0400 - EGR Malfunction. Cleared code. Pulled EGR valve and tested...opens and closes fine. The EGR position sensor was NOT registering the closed EGR position. Got another EGR position sensor and installed. This one tested fine with valve open and closed....
April 03, 2009