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P0402 Diagnostic Trouble Code Discussion for October 2007

EGRC-BPT Valve Function

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Trouble Ticket Help Requests for DTC P0402
Help Request Posted
1999 Mazda Miata 10th Anniversary 1.8L MIL Lamp on VIN: JM1NB3532X
P0402: EGR Excessive Flow Detected. ... questions on. Has this P0402 that keeps coming back. So far I have pulled the Egr to check that the passages aren't clog, check the EGR boost sensor, and MAP sensor. The passages don't seem to be clogged when we pull of the EGR and start the car it wants t...
October 09, 2007
2000 Mercury Sable LS Premium 3.0L Hesitation, MIL Lamp on VIN: 1MEFM55S1Y
P0402: egr excessive flow detected. ... p0401 - insufficient egr flow. Hook up scanner and scan data reads 1.80v from dpfe all the time. Manualy open egr and voltage does not change. Remove and replace dpfe and voltage now is .8V egr closed and around 4.5V open. Sent the vehicle on its way. Car ...
October 10, 2007