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Re: NOX? AMM CAT
Posted by scott batchelder (more from scott batchelder) on Wed, 27 Apr 2005 02:45:27
In Reply to: Re: NOX? AMM CAT, eingang, Sat, 29 Jan 2005 08:30:05
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Great post. With above info i was able to diagnos my 87' 900 with high nox and passing co and hc emissions. Mechanic wanted to replace cat but it would only fix hc and co. Same problem car was just running very lean and too hot on the dyno stand creating high nox. Dyno operator was not using big fans in front of car to flow air over the radiator during test so of course it was hot. First I found vacuum leak at manifold and fixed. Then I bypassed the left side thermo-switch so both fans were on for entire test and nox dropped 30%. This represents realistic driving conditions with air flowing over radiator under load..
posted by 66.30.7...
Posts in this Thread:
- AMM ?, lms, Fri, 28 Jan 2005 08:33:14
- Re: AMM ?, JohnK, Fri, 28 Jan 2005 09:11:40
- Re: AMM ?, lms, Fri, 28 Jan 2005 10:27:29
- Re: new CAT ?, kenS
, Fri, 28 Jan 2005 11:12:14- Re: new CAT ?, lms, Fri, 28 Jan 2005 12:29:23
- NOX?, eingang, Fri, 28 Jan 2005 14:46:44
- Re: NOX?, lms, Fri, 28 Jan 2005 16:43:39
- Re: NOX?, JohnK, Sat, 29 Jan 2005 07:04:06
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