P0421 Code Mitsubishi Eclipse

20 Dec 2023

P0421 mitsubishi bank 1 hywel little P0421 – warm up catalytic converter bank 1 efficiency below threshold I have a 06 mitsubishi endeavor that has an error code p0421. the

P0421 Mitsubishi Bank 1 Hywel Little

P0421 – warm up catalytic converter bank 1 efficiency below threshold How to: fix ses error code p0421 for about $5 bucks P0446 2007 3.8 gt

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Has anyone actually installed an o2 spacer on that rear bank 1 sensor

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HOW TO: Fix SES Error Code P0421 for about $5 bucks - Club3G Forum

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P0421 – Warm Up Catalytic Converter Bank 1 Efficiency Below Threshold

Mitsubishi eclipse: warm up catalyst efficiency → below threshold (bank

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