2 codes
I have the same code for bank one running lean I replaced the bank 1 sensor 1 o2 sensor and the light has yet to come back on. For the other code it's for your idle air control valve I'd tackle one problem at a time and go from their, also the oxygen sensor is like 54 dollars if you have time to wait order it off amazon I paid like 31 dollars and it was shipped to my front door
Are you getting any other codes, like a P0171 or P0174? And how's the idle - sputtering or high? The IAC valve itself can be cleaned with throttle body cleaner, and the circuit can be tested with a voltmeter when you disconnect it. These other codes usually indicate a vacuum leak.


