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P1491 Diagnostic Trouble Code Discussion for February 2007

EVAP Vacuum Cut Valve/Bypass Circuit Malfunction

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Trouble Ticket Help Requests for DTC P1491
Help Request Posted
1999 Honda Accord LX 2.3L Poor Idle Quality, Hesitation, Cuts out, Stall, MIL Lamp on VIN: 1HGCG3142X
P1491: EGR Valve Lift Sensor Insufficient Flow Detected. Customer complaint of vibration when starting out and shifting gears. I test drove vehicle with customer thinking it was a clutch issue, could not duplicate problem with me or customer driving. Which leads me to beleive I have a different problem. Like a missf...
February 01, 2007