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P1491 Diagnostic Trouble Code Discussion for January 2005

EVAP Vacuum Cut Valve/Bypass Circuit Malfunction

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Trouble Ticket Help Requests for DTC P1491
Help Request Posted
1998 Honda Accord EX 3.0L MIL Lamp on VIN: 1HGCG1653W
P1491: EGR Valve Lift Sensor Insufficient Flow Detected. ... Lexus world, so I am helping the used car dept. This Accord has the engine MIL on, generic scan tool says P1491 is stored. This code seems to be a Honda proprietary code with no definition on the scanner. Can anyone give some light on a cause and a possibl...
January 20, 2005