MITSUBISHI GALANT P CODES (POWERTRAIN) P0400 - P0499 P0421

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2006 Mitsubishi Galant Code P0421

Car Has Check Engine Light On. I Changed The Cat On The Bottom Of The Car But Still Has Light On. I Understand That It Can Be A O2 Sensor...

Asked by Diaz764 ·

9 ANSWERS

1 IMAGE

2006

MITSUBISHI GALANT

Is it Safe to Drive Check Engine Light?

VIDEO

Is it Safe to Drive Check Engine Light?

Instructional repair video

Check Engine Light

Check Engine Light

Why is my check engine or service engine soon turned on? In this guide we talk about what this is associated with this notorious light, what it is used for and what you...

2000 Mitsubishi Galant OBD Code PO421

Obd Code Po421 Is Registering On My Car. According To What I'd Read It Means The "warm Up Catalyst Efficiency Is Below Threshold Bank 1...

Asked by skykings44 ·

7 ANSWERS

2000

MITSUBISHI GALANT

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