Re: failed emissions big time - high co - Saab 900 Bulletin Board - Saabnet.com
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Re: failed emissions big time - high co
Posted by kooch (more from kooch) on Sat, 6 Dec 2003 06:36:45
In Reply to: failed emissions big time - high co, Louis, Fri, 5 Dec 2003 16:02:23
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somewhat unrelated, but check your front tires. ct uses a rolling dyno for testing, right? they do the same up here in ma. the dyno they use does not contain one roller for both front tires, but two, one for each. i had my car tested in ma last jan and just noticed that the fron t tires had been carved out on the inside shoulder from the dyno rollers edge. all the way to the belts on the driver's side. i have a friend who had his tested in ct and noticed the same thing. definitely a safety thing. just make sure your tires did not get carved out.
regarding you richness, there are a few things that can cause the issue. cat, o2 sensor, amm, ntc sensor. the o2 sensor and ntc sensor can be checked with a voltmeter. the cat is tough to check, and the amm is easiest to just swap out with a known good one to be sure.
you may also want to run through the vacuum lines on the engine as with age they will become brittle and crac, allowing un metered air into the engine, causing leaner conditions. not so in your case, but i would check to make sure.
hope this helps.
posted by 24.60.24...
Posts in this Thread:
- failed emissions big time - high co, Louis, Fri, 5 Dec 2003 16:02:23
- Re: failed emissions big time - high co, Ben French, Sat, 6 Dec 2003 18:05:34
- Hows your gas mileage been?, BobH, Sat, 6 Dec 2003 06:43:30
- Re: failed emissions big time - high co, kooch, Sat, 6 Dec 2003 06:36:45 <-- Viewing This Message
- I saw a new exhaust tip, guarantees low emissions, Russell Giuliano, Sat, 6 Dec 2003 03:50:19
- see my post earlier today....Need to assess..., Chaz, Fri, 5 Dec 2003 19:57:50
- Re: catalyst..., kenS
, Fri, 5 Dec 2003 16:38:27
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