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check engine light 900 91

posted by  someone claiming to be Duane Ausherman on  Mon Jul 23 13:01 CST 2001 [RELATED]

I am new to Volvo and am really having trouble figuring out this layout. I have a 940 SE with 98 K on it. My check Engine light is on most, but not all of the time. It runs perfectly. It only gets about 22-23 mpg, is that about correct?

I don't have the owners manual, but I bought a Chilton manual. I found the computer test module. With the wire plugged into #2 I got 1-1-1. In #6 I got 2-4-1 so I guess I have the EZ-116K ignition system. That translates to EGR system flow too low or too high. I am afraid that doesn't tell me much. One friend suggested that it was the oxygen sensor. Any ideas?





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