Dorman 994-023 Vapor Canister Purge Valve

Overview of Dorman Vapor Canister Purge Valve 994-023

The Dorman Vapor Canister Purge Valve 994-023 is designed for precise emission control in select Nissan and INFINITI vehicles. This component plays a critical role in managing fuel vapor flow, helping maintain optimal engine performance and reduce harmful emissions.

• Connector hose inside diameter: 13.84 mm for secure hose fitment
• Dual elliptical female connectors with 7.77 mm outside diameter
• Blade-type male terminals, two in quantity for reliable electrical connection
• Durable housing constructed from both metal and plastic materials
• Two mounting holes (6.70 mm diameter) with included mounting screws for straightforward installation
• Inlet inside diameter of 6.5 mm and overall length of 64.18 mm
• Package includes one purge valve and two mount screws

Detailed Product Description

The Dorman 994-023 vapor canister purge valve is engineered to regulate the flow of fuel vapors from the charcoal canister to the intake manifold. Featuring a combination of metal and plastic housing materials, this valve ensures durability and resistance to heat and chemical exposure. The elliptical female connectors and blade-type male terminals provide secure and corrosion-resistant electrical connections, essential for consistent valve operation. With two mounting holes and included hardware, installation is simplified, reducing downtime during replacement.

Compatible Vehicles and Applications

This vapor canister purge valve is compatible with a range of Nissan and INFINITI models, including the Nissan 350Z, 370Z, EX35, EX37, FX35, FX37, G25, G35, G37, and the INFINITI M35, M37, Q40, Q50, Q60, Q70, Q70L, QX50, and QX70. The part number 994-023 ensures precise fitment and function within these vehicles' evaporative emission control systems.

Common Issues Addressed by the Vapor Canister Purge Valve

• Check engine light triggered by faulty purge valve operation
• Rough idling or engine hesitation due to improper vapor flow
• Failed emissions tests related to evaporative system leaks
• Fuel odor caused by vapor canister leaks
• Reduced fuel efficiency linked to vapor management problems

Installation Notes and Tips

When installing the Dorman 994-023 purge valve, ensure the vehicle is cool and the ignition is off. Disconnect the battery before removing the old valve to prevent electrical shorts. Use the included mounting screws to secure the valve firmly in place, and verify that the elliptical connectors are fully seated to avoid vacuum leaks. Double-check all electrical connections for proper engagement. After installation, clear any diagnostic trouble codes and perform a system test to confirm correct operation.

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM specifications, providing reliable performance in emission control applications. The 994-023 vapor canister purge valve undergoes rigorous testing to ensure durability and functionality. This part includes a limited warranty covering defects in material and workmanship, offering peace of mind for professional and DIY installers alike.