cel codes???
#1
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I have a 99 volvo v70 xc and lately its been sputtering bad when stopped and spitting black smoke from exhaust. Also has horrible gas mileage. I think its the o2 sensor but which one and how do you tell which one is bad. I got codes read today and 3 came upin the following order
1-p1171
2-p0171
3-p0135
Any tips would be greatly appreciated.
1-p1171
2-p0171
3-p0135
Any tips would be greatly appreciated.
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