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Failed emissions test-high NO 700

posted by  RAMontgomery on  Wed Feb 18 11:05 CST 2004
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last visit: Sat Jan 12 00:28 CST 2013
[RELATED]

I just went through this a couple of months ago. Turned out I had a very small leak in the intake hose between AMM and the throttle body. A well-warmed engine as you did is usually a good thing to do. If the engine is indeed too hot – find out why. Does your model have an EGR valve? If it does, be sure it is clean. Also check FAQ for more NOx info.
--
Richard Montgomery 83-244GL ; '90-780t; '92-940; '80-242DL






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