DTC P1491 Audi
Evaporative Emission System Purge Control Valve CircuitOpen
Evaporative Emission System Purge Control Valve CircuitOpen
Description
Evap purge valve Commanded off Engine speed > 40 RPM
Cause and Solution
EVAP vacuum cut bypass valve is damaged or has failed
EVAP vacuum cut valve is damaged or has failed
EVAP control system pressure sensor damaged or has failed
Vapor hose between fuel tank and cut valve is blocked or bent
Vapor hose between canister and vacuum cut valve is plugged
Video Guide
Diagnostic Info
- DTC Code: P1491
- Brand: Audi