Has anyone actually installed an O2 spacer on that rear bank 1 sensor

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P0421 – Warm Up Catalytic Converter Bank 1 Efficiency Below Threshold

I have many error codes and havent been able to solve it.. originally i

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How to: fix ses error code p0421 for about $5 bucksError code p0431 How to: fix ses error code p0421 for about $5 bucksHow to: fix ses error code p0421 for about $5 bucks.

MAZDA & FORD CODE P0421 (EASY FIX) - YouTube
MAZDA & FORD CODE P0421 (EASY FIX) - YouTube

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Decoding the P0421 Code: Troubleshooting Mitsubishi Outlander's
Decoding the P0421 Code: Troubleshooting Mitsubishi Outlander's

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2004 Mitsubishi Eclipse 3.0l P0660, P0113, P0102 Idle Surge and

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Mitsubishi Eclipse P0421 Code: Bank 1 Location & Troubleshooting
Mitsubishi Eclipse P0421 Code: Bank 1 Location & Troubleshooting

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Issues with my 2003 mitsubishi eclipse Code P0705 | Mitsubishi Eclipse
Issues with my 2003 mitsubishi eclipse Code P0705 | Mitsubishi Eclipse

P0403 EGR Solenoid Replacement Mitsubishi Eclipse 2000 2005 - YouTube
P0403 EGR Solenoid Replacement Mitsubishi Eclipse 2000 2005 - YouTube

P0421 – Warm Up Catalytic Converter Bank 1 Efficiency Below Threshold
P0421 – Warm Up Catalytic Converter Bank 1 Efficiency Below Threshold

Mitsubishi Eclipse P0420: Meaning, Causes, + How to Fix | Drivetrain
Mitsubishi Eclipse P0420: Meaning, Causes, + How to Fix | Drivetrain

P0421 Mitsubishi Bank 1 Hywel Little
P0421 Mitsubishi Bank 1 Hywel Little

Dreaded P0431 code. | Mitsubishi Eclipse 4G Forums
Dreaded P0431 code. | Mitsubishi Eclipse 4G Forums

Fehlercode P0421 Mitsubishi - P0421 Code Warm Up Catalyst Efficiency
Fehlercode P0421 Mitsubishi - P0421 Code Warm Up Catalyst Efficiency

Has anyone actually installed an O2 spacer on that rear bank 1 sensor
Has anyone actually installed an O2 spacer on that rear bank 1 sensor