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emission 94011

rcbusiness

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CAN anyone suggest something, 2007 g5 P4011 code, i replaced the secondary inj. and wire connection, and the smog pump. The code wont go away. Porter and Chester, couldnt fix it. I am thinking an O2 sensor, but not sure which one to replace. thanks for help
 
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rcbusiness

New member
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yes thanks. pretty much a generic account for P0411. Everything shows to replace pump secondary and even wire to secondary. A couple sites state the ECM but other than that, NOTHING that i can find even suggests something that can be trouble shooted, without a 1000$ emissions OBD check up :-?.
 
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