Code 51
WARNING: This page is about a different car, the 1995 Dodge Ram Wagon, 1995 Dodge Ram Van, 1995 Dodge Pickup, 1995 Dodge Dakota, and 1995 Dodge Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.
On AB and AN bodies, DRB displays O2S STAYS BELOW CENTER (LEAN). Condition is: oxygen sensor input indicates lean air/fuel ratio during engine operation.
On BR body, DRB displays SYSTEM LEAN L-IDLE ADAP AT RICH LIMIT. Condition is: oxygen sensor signal input indicates lean air/fuel ratio condition at left O2S during engine operation. If vehicle is equipped with dual O2S, DRB will identify left or right O2S.
On BR body, DRB displays SYSTEM LEAN R-IDLE ADAP AT RICH LIMIT. Condition is: oxygen sensor signal input indicates lean air/fuel ratio condition at right O2S during engine operation. If vehicle is equipped with dual O2S, DRB will identify left or right O2S.