Lately my truck has been showing service engin soon light, I hokked up a code reader and it says it is running lean on bank 1, so, I did a real time data check while driving it and noticed the O2 sensor voltage on bank 1 is much lower and varies much more than #2, jumps anywhere from .10 to .74 and #2 is more rythmic variance.
Could this mean the sensor is bad? and making it run lean?
it could be. id change them both.
what codes are u running p0160 p0157 p0158
I think it was p0171, just saying it's lean. injectors?
i have heard of intakes leaking and causing this
I have codes 174, 171, 137
Looking for a Used Silverado 1500 in your area?
CarGurus has 151,334 nationwide Silverado 1500 listings starting at $1,500.
Search Chevrolet Silverado 1500 Questions
Are you a UK consumer? CarGurus now has a discussion forum in the UK.
Chevrolet Silverado 1500 Experts