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P0402 Diagnostic Trouble Code Discussion for March 2006

EGRC-BPT Valve Function

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Trouble Ticket Help Requests for DTC P0402
Help Request Posted
1999 Ford Ranger XL 3.0L Poor Idle Quality, High idle VIN: 1FTYR10V0X
P0402: egr excess flow. ... emissions test, it had two codes, p0402 (egr flow) and p0174 (lean bank 2). We found the breather tube from the valve cover to intake boot out. That was plugged back in and codes cleared. No codes have returned. The engine runs and drives fine. The engine ...
March 15, 2006
1999 Mazda Miata 10th Anniversary 1.8L MIL Lamp on VIN: JM1NB3539X
P0402: e g r excessive flow detected. ... light came on failed emmision the custamer said she had the e g r port cleaned down there and the e g r valve replaced . i looked on iatn and everbody said to clean the port so i talked to her and she said do it . i took the upper intake off and e g r and ...
March 15, 2006
1998 Ford E-250 Econoline 4.2L MIL Lamp on VIN: 1FTEPE2421
P0402: EGR flow excessive. ... this one, came in with P0401 and P0402 stored. I did NOT clear codes, yet. Ran KOEO test, passed. Ran KOER test, it also passed. Although the rpm did not change as much as I'd have liked when the EGR was open. I manually opened the valve using a vacuum p...
March 28, 2006