Standard Ignition CP661 Vapor Canister Purge Solenoid

Vapor Canister Purge Solenoid for Audi Applications

Standard Ignition CP661 is a vapor canister purge solenoid for emission control service on select Audi models. It is built with a female 1-connector layout, a rectangular connector shape, and male blade terminals for direct electrical connection in the purge circuit.

Compatible With 1995-1999 Audi A8, Audi A8 Quattro, Audi A6, Audi A6 Quattro, Audi A4, Audi A4 Quattro, Audi Cabriolet, and Audi 90 applications where this purge solenoid configuration is specified. Standard Ignition CP661 is also referenced by CP751 for the same application.

Key Features

• Vapor canister purge solenoid for emission control system service
• Female 1-connector design with rectangular connector shape
• 2 hose connectors with 1/8 in. hose size
• 2-port body layout for purge line routing
• Male blade terminals with 2 terminal positions
• Standard Ignition CP661 replacement part number

Product Details

This purge solenoid helps control vapor flow from the charcoal canister into the engine intake under commanded conditions. The CP661 uses a single female electrical connector, two hose connections, and a compact rectangular housing to match the original-style purge valve layout used on select Audi A8, A8 Quattro, A6, A6 Quattro, A4, A4 Quattro, Cabriolet, and 90 models. If you are replacing a faulty Audi vapor canister purge solenoid, Standard Ignition CP661 provides the correct connector and port configuration for the listed applications.

This part cross-references 2-283776 and PV2046 for the same application.

Common Issues This Part May Resolve

• Check engine light related to evaporative emission control faults
• Rough idle caused by improper purge flow
• Fuel vapor odor from a purge system leak or valve fault
• Hard starting after refueling when the purge valve sticks open
• Emission test failure tied to EVAP system performance

Installation Notes and Tips

Verify connector style, hose size, port count, and terminal layout before installation. Inspect the purge hoses and electrical connector for wear, cracking, or corrosion during replacement. Confirm the vehicle application by year and model, especially on 1995-1999 Audi A8, Audi A8 Quattro, Audi A6, Audi A6 Quattro, Audi A4, Audi A4 Quattro, Audi Cabriolet, and Audi 90 platforms.

Quality Assurance

Standard Ignition supplies emission control components with application-specific fitment and OE-style connector and port configurations for listed vehicles. CP661 is engineered for direct replacement use in the specified Audi applications.