I went to autozone today so that they could read the code on my truck and it said my bank 2 was lean. What could cause this? They said anything from maf, egr valve, or vacuum line leak could cause this. What do yall think
also it may indicate that you need a tune-up or it may have a vacuum leak. If it's got a lot of miles on the plugs it can make the o2 sensor show a code for a lean condition just simply because the plugs aren't doing their job anymore.