My check engine light came on so I went to a local part store and code P0171 came up and it said "system too lean" and "bank 1".
I got home and looked up the code in my Haynes and code P0171 is "System Adaptive fuel too lean".
Where do I need to go from here? I am thinking either I need to clean my K&N air filter or could it be a bad O2 sensor?
I have noticed that when I step on the gas there is a pinging sound coming from the engine; to remedy this I went to 89 grade octane and sometimes I have had to put in the 91 grade octane fuel, which has helped.