Standard Ignition CP743 Vapor Canister Purge Solenoid

Vapor Canister Purge Solenoid for Nissan and INFINITI

Standard Ignition CP743 is a vapor canister purge solenoid for emission control service on select Nissan and INFINITI vehicles. It uses a female oval connector, two blade terminals, and a two-port solenoid layout for direct replacement in the engine compartment where equipped.

Key Features

• Vapor canister purge solenoid for emission control system repair
• Female connector with oval shape for the harness interface
• Two male blade terminals for electrical connection
• Two-port solenoid design
• Fits select 2005-2010 INFINITI and Nissan applications
• Standard Ignition CP743 replacement part number

Detailed Description

Standard Ignition CP743 is built for vehicles that use an electronically controlled purge solenoid to manage fuel vapor flow from the charcoal canister into the intake system. This part number is used on select Nissan Maxima, Altima, Murano, Quest, and 350Z models, along with INFINITI FX35, FX45, G35, M35, M45, and Q45 applications. If you are servicing a Nissan Maxima vapor canister purge solenoid or replacing a purge valve on an INFINITI M35, CP743 provides the correct connector style and port layout for the listed vehicles.

This part cross-references 2-283978 and CP832 for the same application.

What It Helps Fix

• Check engine light related to evaporative emission control faults
• Rough idle caused by purge flow issues
• Hard starting after refueling
• Fuel vapor odor from purge system leakage
• Driveability concerns tied to a stuck-open or stuck-closed purge solenoid

Installation Notes and Tips

Install CP743 in the engine compartment on the listed vehicles and verify the connector, terminal style, and port arrangement before replacement. Inspect the purge hose routing, electrical connector condition, and nearby vacuum lines during service. After installation, clear diagnostic trouble codes and confirm the evaporative system operates normally.

Quality Assurance

Standard Ignition supplies emission control components for service replacement applications, and CP743 is cataloged for direct fitment on the listed Nissan and INFINITI models. Confirm vehicle year, make, and model before ordering to ensure the correct purge solenoid for your application.