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91 740 emmissions failure 700 1991

posted by  someone claiming to be Craig on  Sun Jan 15 14:26 CST 2006 [RELATED]

my 91 740 failed the emmissions test, with a NOX reading too high (1200) ppm.

other than a faulty cat converter, what else could cause the high NOX readings? All other readings (HC. CO, CO2) were in normal range.

thanks.

c.






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New 91 740 emmissions failure [700][1991]
posted by  someone claiming to be Craig  on Sun Jan 15 14:26 CST 2006 >


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