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#1
01-29-2010, 03:06 PM
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P0420 Fault Code on Emissions Test
2002 Chevy Venture Economy model, Catalytic Converter appears to be original, have 125,000 Miles on it and it is a little noisy. Have heard it could be either of the 2 O2 sensors, but probably a bad cat, right? Anyone else? How long should it take a mechanice to replace a Cat on this model?
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#2
02-07-2010, 11:14 PM
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Re: P0420 Fault Code on Emissions Test
Had the P0420 pop up for a few years before I had Menike repace the cat, haven't seen the code since. Dropped if off but most likey only took them an hour or so. Think it was ~$220. Think it started popping up around 150,000 miles or so.
__________________
1999 Pontiac Montana 202,000 miles and still going
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#3
02-07-2010, 11:21 PM
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Re: P0420 Fault Code on Emissions Test
I would replace the CAT, and upstream H20 sensor for the air/fuel mix only, the old upstream H02 sensor canbe used down stream.
www.catalyticconverterwarehouse.com has OEM for $219, aftermarket cats are alot cheaper.
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