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#1
08-30-2005, 01:00 AM
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failed emmission test
I failed emissions test this past weekend and the HC and the CO failed!
HC=2.9253 limit=0.8000 CO=35.6131 limit=15.0000 I have heard that my o2 sensor's may be the problem? the engine is not burning all the gas ,(i can put in a half tank of gas and a day and a 1/2 later, need more gas) could this be true or what should i check first? My last tune-up was in june. 1994 chevy caprice ls 305 
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#2
08-30-2005, 11:55 AM
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Re: failed emmission test
Sounds like it probably is the O2 sensor... Mine caused me to get horrible gas mileage, and when I replaced it, it made all the difference. Just make sure you get an AC Delco one, its a little bit more expensive, but its worth it.
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