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Subaru OBD2 Code P1133 Explanation and Meaning

Model: subaru Fault Code: P1133 Posted: 2005-06-18 23:16

Does anyone know what Subaru OBD2 code P113-3 means? I've been searching through various diagnostic lists, but most skip over this specific code. Can someone clarify its exact cause or interpretation for Subaru vehicles?

Related fault codes

P1133

Comments (2)

Anonymous 2005-06-22 15:37

I just received a P1133 code on my vehicle — it indicates the front oxygen sensor located before the catalytic converter is malfunctioning.

Anonymous 2008-06-11 18:26

For a 1999 Subaru, the meaning of code P1133 depends on whether it's labeled as 'P1133 - Manufactured Air/Fuel Control' or refers to the front oxygen sensor. This distinction is critical — don't assume the code applies universally without checking the exact diagnostic description.