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PREACH ... 9/10/2012
2007 Dodge Grand Caravan SXT 6Cyl3.8L - Engine
p0420 whats the cure?
changed downstream 02 sensor and added seafoam to gas for possible stuck injector light still on ????? help please
1 Answer
  • RC
    RC 9/10/2012
    P0420 is a catalytic converter code. Have you tried resetting the code? The most common cause is the converter itself.
    PREACHER MAN 9/11/2012
    yes it came back on within 20 miles there is no loss of power or restriction in the exhaust could the cat still be bad? id hate to throw out $400 on a new cat if thats not it ya know

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