Thread: 87 260E failed smog...Input?
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Old 03-20-2009, 12:16 AM
Oracle12345 Oracle12345 is offline
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Join Date: Jul 2007
Location: USA
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NOx is too little air and too much fuel so a blocked egr tube could be in question. Any gas or diesel car Ive seen has an egr system on it...

he doesnt have a problem with HC..... he has a problem with NOx.Whenever you have high NOx hydrocarbons and carbon monoxide are down greatly.
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1986 300SDL, 211K,Dealership serviced its whole life
1991 190E 2.6(120k)
1983 300D(300k)
1977 300D(211k)
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