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Old 04-01-2008
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Icon4 ? about tuner and inspection

Went to get my inspection last night and the obd 2 test get coming up as not completed. I have not been tossing any codes. I forgot to reset the truck back to stock before i went, could that be why it would not pass?
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Old 04-01-2008
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Could be.

Was it P1000?

Try http://www.obdii.com/drivecycleford.html after you go back to stock.
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Old 04-01-2008
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when you clear codes from a scanner they still sit in the ecu. the scanner we use has three lights on it, green yellow and red. green for no codes, red for codes when the cel light is on and yellow for codes present, but cel light off. that could be why it was incomplete.

when you mean put it back to stock, you mean you have a tuner and messed with the settings, or like exhaust and took out one of the o2 sensors
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Old 04-01-2008
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Most tuners disable the necessary drive cycle tests that many states with emissions inspections require.

In PA, for example, 1996 and later OBDII vehicles are no longer "sniffed" at the tailpipe. Instead, the system checks the emissions related drive cycle monitors for successful completion.

Those monitors check things at various operating conditions and are actually a good indication of a healthy emissions system.

The problem you will have is that first of course you need to return your truck to stock. Secondly, those monitors must have time to complete and you'll need to drive around a bit before they do.

Last, in order to KNOW they've completed you need a scanner which indicates their status. Paul has one like my Equus 3110 that has the 3 LED's to indicate status. A green LED means ready for inspection verification.

In addition, most have icons or a scrollable list of tests that have not yet completed, or have failed.

The pesky one for me was the vapor recovery system check. That took awhile to complete on my truck. It was failing until I cleaned out the valve in the charcoal cannister which probably got screwed up going through deep water on mine.
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Old 04-01-2008
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how long do i have to drive for all the settings to reset? rough guess
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Old 04-01-2008
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Quote:
Originally Posted by pongorulz View Post
when you clear codes from a scanner they still sit in the ecu. the scanner we use has three lights on it, green yellow and red. green for no codes, red for codes when the cel light is on and yellow for codes present, but cel light off. that could be why it was incomplete.

when you mean put it back to stock, you mean you have a tuner and messed with the settings, or like exhaust and took out one of the o2 sensors
i had put a perform tune in and played with the settings
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