Chevy Blazer S-10

I have a 94 s-10 blazer it has poor take off rough idle and it is eating gas got a code to check o2 sensor so you replaced it and cleared the codes fired it up doingsame but not getting any codes now?



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I would look for a a vacuum leak on a 14 year old vehicle. In fact I would just replace all under hood vacuum hoses. If that is not the problem look at the EGR valve. It may need cleaning.