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P0402 Diagnostic Trouble Code Discussion for October 2011

EGRC-BPT Valve Function

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Trouble Ticket Help Requests for DTC P0402
Help Request Posted
2001 Ford F-150 XL 4.2L MIL Lamp on VIN: 1FTZF07231
P0402: Egr excessive flow. We haven't found any vacuum leaks, engine runs normally. I am aware that these vehicles have a history of intake leaks especially the isolator bolts and MAF problems however that would affect both banks and we only see lean running bank 2.I am wondering if a D...
October 27, 2011
1994 Lexus ES300 3.0L MIL Lamp on VIN: JT8GK13T3R
P0402: egr system excessive flow. This one is giving us fits! have replaced everything in the egr system but the egr valve itself. last time in we were going to replace the valve but found a split vacuum line, ran vehicle through 3 drive cycles with no more light, thought we had it. car runs g...
October 27, 2011