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Questions and Answers

"EVAP" Codes

Q. The emissions control system vent circuit malfunction code for the engine light is causing my engine light to stay on. Can you tell me the reason behind this?

Thank you,

A. A year, make, model, and actual code would help here. Most "EVAP" codes can be caused by a loose or leaking gas cap. Also there are vacuum lines from the fuel tank to the storage canister to the engine. A leak in any line can cause a code to set as well as a vent or purge solenoid that is not sealing properly.

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