Standard Ignition CP112 Vapor Canister Purge Valve

Vapor Canister Purge Valve for EVAP Service

Standard Ignition CP112 is a vapor canister purge valve for evaporative emission control service. It is built with industrial-grade materials and tested at the end of the line to help deliver consistent operation in the EVAP system.

Compatible With Chevrolet Caprice, Impala, Metro, Tracker; Buick Roadmaster; Cadillac Fleetwood and more listed applications. The CP112 is a direct-fit style purge valve for vehicles that use a 3-port valve layout and 1/4 in. or 5/16 in. hose connections.

Key Features

• Vapor canister purge valve for evaporative emission control systems
• 3 hose connectors and 3 ports
• Hose sizes: 1/4 in., 5/16 in. and 7 mm, 8 mm
• No connector supplied
• Built with durable materials for long service life
• End-of-line tested for quality control
• Standard Ignition CP112 replacement part

Detailed Description

The Standard Ignition CP112 purge valve regulates vapor flow from the charcoal canister into the engine intake during EVAP operation. It is used on a wide range of Chevrolet, Buick, Cadillac, Geo, Oldsmobile, and Pontiac applications, including Chevrolet Caprice, Chevrolet Impala, Chevrolet Metro, Buick Roadmaster, and Cadillac Fleetwood. This part cross-references Standard Ignition CP104 for the same application.

Standard Ignition states that this canister purge valve meets or exceeds original equipment specifications and uses high-grade materials for dependable performance. If you are servicing an EVAP fault on a 1981-2000 vehicle listed in the fitment data, CP112 is the correct style to verify against the original valve configuration and hose sizes.

Common Issues This Part Can Address

• EVAP leak codes related to purge valve operation
• Rough idle caused by a purge valve stuck open
• Fuel vapor control problems in the evaporative system
• Hard starting after refueling on affected vehicles
• Check engine light concerns tied to purge flow faults

Installation Notes and Tips

Verify the original valve has 3 ports and no electrical connector before ordering. Match the hose sizes to the vehicle’s existing EVAP plumbing, especially 1/4 in., 5/16 in., 7 mm, and 8 mm connections. On listed applications such as Chevrolet Caprice, Buick Roadmaster, and Cadillac Fleetwood, compare the old part number and hose routing before installation.

Quality Assurance

Standard Ignition manufactures the CP112 with robust materials and end-of-line testing to support consistent fit and function. The part is built to meet or exceed original equipment specifications.