ahmadani Posted September 11, 2011 Report Share Posted September 11, 2011 Hi my car has LT and a tune and a pulley. As i was driving today my check engine came on it says p2251 o2 sensors negative current control ckt open (b1,s1) is it ok to drive it. Or is it going to affect the A/F ratio of the car. Quote Link to comment Share on other sites More sharing options...
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