Audi P1491: Evaporative Emission System Purge Control Valve CircuitOpen
Is your scanner showing Audi P1491?
No worries. We'll show you what it means and how to deal with it.
Audi P1491: Evaporative Emission System Purge Control Valve CircuitOpen
OVERVIEWWhat Does The Audi P1491 Code Mean?
Evap purge valve Commanded off Engine speed > 40 RPM
What Are The Potential Causes Of The Audi P1491 Code?
- 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
- EVAP canister is damaged or EVAP purge port at tank is dirty
Recommended Parts
Below are some recommended auto parts to help you address the trouble code affecting your vehicle and get it running smoothly again:
>>> Vapor Canister Purge Valve Solenoid 06E906517A
>>> WORKPRO 582-piece Crimp Terminals, Wire Connectors, Heat Shrink Tube, Electrical Repair Kit
Note: During the purchasing process, please check carefully whether the part you want to buy fits your car!
Reference Sources
- Audi, 2014, A8/A8L/S8 Quick Reference Specification Book, page 155.
- Audi, 2014, R8/Spyder Quick Reference Specification Book, page 324.
