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2002 Silverado OBDII Drive Cycle

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Old February 9th, 2014, 1:37 PM
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Default 2002 Silverado OBDII Drive Cycle
I recently bought this truck from my neighbor, and to get my tags I have to pass emissions, but I've failed because I havnt completed the drive cycle. I have done all of the gm requirements ( coast from 55 to 20 w/o brakes, idle, ect.) and the heat o2/catalyst thing still isn't ready. I've driven it 300 miles. Is there anyway to check the the percentage of drive cycle completed with a scanner? Anyway around this?
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Old February 9th, 2014, 2:37 PM
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no. which monitors are not complete?
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Old February 9th, 2014, 3:15 PM
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The hrt (oxygen sensor heater) monitor is the only one.
Last edited by Asmithmj; February 9th, 2014 at 3:22 PM.
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Old February 9th, 2014, 9:31 PM
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o2 monitors run continuously as soon as they enter closed loop operation. No dtc are setting, correct?
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