What Does System Too Lean At Idle Mean?

What Does System Too Lean At Idle Mean? P2189 trouble code definition The P2188 “System Too Lean at Idle Bank 1” definition indicates that there is too much air and too little fuel in the air-fuel ratio detected by the ECM during engine idle. How do I fix a system that is too lean? What … Continue reading What Does System Too Lean At Idle Mean?