Standard Ignition CP3531 Vapor Canister

Vapor Canister for Scion tC

Standard Ignition CP3531 is a vapor canister for the evaporative emission control system on select Scion tC models. It uses a charcoal filter media and a black housing to help manage fuel vapor storage and routing in the EVAP system.

• Fits 2005-2010 Scion tC
• Standard Ignition CP3531 vapor canister
• Black finish
• Charcoal filter media with filter element included
• 1 female connector, round rectangle shape
• 2 ports, 7 male pin terminals

EVAP System Function

This vapor canister stores fuel vapors from the fuel tank and routes them through the evaporative emission system for later purge. On Scion tC applications, a worn or restricted canister can affect vapor control and trigger EVAP-related fault codes. Standard Ignition CP3531 is built for direct replacement use on 2005-2010 Scion tC models and is also referenced by part number CP3531 for catalog matching.

This part cross-references 2-70390 and CP1696 for the same application.

Common Issues It Can Help Address

• EVAP leak codes related to vapor storage or routing
• Fuel vapor odor around the vehicle
• Check engine light caused by evaporative emission faults
• Restricted charcoal canister flow
• Failed emissions inspection tied to EVAP system faults

Installation Notes

Verify connector style, port layout, and terminal configuration before installation. Inspect EVAP hoses, seals, and related valves for damage or blockage during replacement. Because mounting hardware is not included, reuse serviceable original hardware as needed. Confirm fitment by year and model before ordering; this vapor canister fits 2005-2010 Scion tC applications.

Quality Assurance

Standard Ignition CP3531 is cataloged as an emission control replacement part for the evaporative system and is listed with OE-style interchange references for application matching. Use the part number CP3531 to confirm the correct vapor canister for your Scion tC.