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Didn't pass emissions. HC's at idle too high. Any suggestions?

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Old 09-07-2006, 05:08 PM
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Default Didn't pass emissions. HC's at idle too high. Any suggestions?

I have new plugs, put them in a couple hours before the test and I have an open air filter. Does cleaning the ISV do anything?
Old 09-07-2006, 05:09 PM
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Change your oil lately?
Old 09-07-2006, 05:22 PM
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4k km ago.
Old 09-07-2006, 07:09 PM
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I would change it and try again. Otherwise, it could be your kitties.
Old 09-07-2006, 08:39 PM
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Default I've fought this ever since I chipped my car...

A lot of the usuall remedies have worked in the past for me but not this year. I'm thinking it's the S/W. the MTM seems to advance the ign timing too much @ idle. I'd like to swap in a stock ecu and try the test, but I can't seem to find one locally... and my stock chips are kaput!
Old 09-07-2006, 10:59 PM
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Oh and give it a good hard run on the way to the emissions test to ensure the kitties are up to temp
Old 09-08-2006, 10:11 AM
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Agreed, basic warmed engine for the cats, fresh oil change, and clean air filter.
Old 09-08-2006, 12:39 PM
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Default New O2 Sensor, Oil Change, HOT Kitty Cats, & Bottle of RXP Use per instructions

<ul><li><a href="http://www.rxp.com/gaskicker.htm">http://www.rxp.com/gaskicker.htm</a</li></ul>
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