Mitsubishi Galant P Codes (Powertrain) P0400 - P0499 P0421
Browse Mitsubishi Galant P Codes (Powertrain) P0400 - P0499 P0421 questions and answers. Choose a question that matches your symptoms.
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P0431 And P0421 Codes?
Have Dtc Codes P0431/p0421. Put New "cat" And New 02 Sensors. Cleared Codes. Car Drove Fine Before And After New Parts Were Put On....
Asked by Mattstorms42
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
Check Engine Light On With Code P0421, How Do I Fix It...
Check Engine Light On, How Do I Fix This?
Any Ideas Of The Cause?
Asked by jacobpaulsen
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
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