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87 Volvo High NOX???? 700

I just failed the TX emissions test with high NOX. I had the same problem last year and replaced the Catalytic converter and passed with flying colors. I can't imagine the cat being the problem again? Any suggestions? The car has 263,000 miles and oil is changed religiously at 3500 miles. Thanks! TPW






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New 87 Volvo High NOX???? [700]
posted by  someone claiming to be Thom  on Tue Nov 2 02:26 CST 2004 >


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