How long does Previous Check Engine code stay in your car system?

recently my check engine light turned on and it went into limp mode. but the light turned off. can i check previous code and how long does it stay in the system. thanks

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  • 9 months ago

    It stays in the system until it is cleared.

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  • 9 months ago

    As long as you haven't erased the codes they will be in the computer. Limp mode is usually caused by transmission control sensors. An OBD II code reader will not work to pull the codes. You need a mechanics $3000 scan tool.

    Source(s): Mitsubishi Master Tech
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