2004 Chevrolet Silverado Cat Evac System Will Get Ready Pass Inspection This

2004 CHEVROLET SILVERADO
95,000 MILES
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DOM.R.MATRA
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The cat & evac system will not get ready, for it to pass inspection. Is this the cause of a bad 02 sensor?
Oct 19, 2012 at 11:00 PM
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SATURNTECH9
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Do you have any codes?Did you unhook or replace the battery recently?
Oct 19, 2012 at 11:01 PM
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DOM.R.MATRA
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I did unhook the battery
Oct 19, 2012 at 11:16 PM
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SATURNTECH9
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How many miles have you driven it since then?Thats why the monitors arent set from the battery unhooking.
Oct 19, 2012 at 11:46 PM
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DOM.R.MATRA
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I've driven it 149 miles.
Oct 22, 2012 at 10:13 PM
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SATURNTECH9
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So the evap and the cat monitors are the only ones that haven't set yet?
Oct 23, 2012 at 4:04 AM
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DOM.R.MATRA
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Yes.
Oct 23, 2012 at 12:39 PM
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SATURNTECH9
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Step 3 is for the evap monitor and step 4 is for the cat monitor the evap monitor is hard to set sometimes the cat monitor is a lot easier to set.You have to do those steps many times sometimes depending on where you live sometimes they will let you pass smog with one monitor unset.
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Oct 24, 2012 at 4:07 AM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.