P0402 Diagnostic Trouble Code Discussion for March 2009
EGRC-BPT Valve Function
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| Help Request | Posted | |
| 1998 Toyota Tacoma DLX 2.4L Hesitation, MIL Lamp on VIN: 4TANL42N0W P0402: Excessive EGR Flow Detected. customer broght vehicle in for a failed ca smog test due to check engine light. verified the code and manually tested the egr valve and tested the egr temperature sensor. followed the flowchart diagnosis from alldata but everything seems to manually test good.... |
March 12, 2009 | |
| 2006 Chevrolet Silverado 2500 HD LT 6.6L Hesitation, MIL Lamp on VIN: 1GCHK23D26 P0402: Exhaust Gas Flow Excessive. I keep coming up with a p0108, but everything checks out. what am I missing? There doesn't seem to be any holes in the intake; the EGR tests good; changing the MAP sensor out made no difference; I cleaned the MAF with no change. please help. I've got 5 hours... |
March 14, 2009 | |
| 2006 Chevrolet Silverado 2500 HD LT 6.6L Hesitation, MIL Lamp on VIN: 1GCHK23D26 P0402: Exhaust Gas Flow Excessive. I keep coming up with a p0108, but everything checks out. what am I missing? There doesn't seem to be any holes in the intake; the EGR tests good; changing the MAP sensor out made no difference; I cleaned the MAF with no change. please help. I've got 5 hours... |
March 17, 2009 |
