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P0402 Diagnostic Trouble Code Discussion for August 2004

EGRC-BPT Valve Function

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Trouble Ticket Help Requests for DTC P0402
Help Request Posted
1999 Ford Expedition Eddie Bauer 5.4L MIL Lamp on VIN: 1FMPU18L9X
P0402: egr at idle. hello! Car ran bad for customer and set p0402. I cleaned out the egr valve & noticed afterward upon checking vacuum that egr vacuum jumps to about 3 inches at about 2000 rpm. If you feather the throttle around this rpm, the vacuum shuts off and then back o...
August 17, 2004
1999 Toyota Camry LE 3.0L MIL Lamp on VIN: JTSBF28K8X
P0402: Excessive EGR Flow Detected. ... codes p0402, p0401, Excessive egr and isuffecient egr. Yet Every time i check it at the control solenoid and at the egr position sensor it operates fine. I assume that a glitch occurs while driving I just wanted to see if...
August 27, 2004
1995 Ford Windstar 3.8L Poor Idle Quality, Cuts out, Stall, Misfire, MIL Lamp on VIN: 2FMDA51485
P0402: egr low. Hi super techs, this vehicle we think needs a computer, but before we do, I'd like to rattle the cage. We find no ground signal to injector #6. Pin 99 out of computer not grounding. Customer states at times it drops other cylinders. Cleared codes and these, pl...
August 31, 2004