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2002 Forester: 4 check engine codes

Farrierson
in 1990 to Present Legacy, Impreza, Outback, Forester, Baja, WRX&WrxSTI, SVX

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I have a 2002 Forester with >200K miles, with a check engine light. 

Codes that popped up included:

P1442

P1507

P0420

P1445

Erase them. See if any come back.

Edited by Fairtax4me

    • Like 1

    P0420 is benign

     

    Clear them - check again - repeat:

    which one comes back first and most consistently?

     

    Any issues?

     

    Idle air controller is related to one of them. Clean and or replace.

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