Code 44 & 45: O2 Sensor - Lean/Rich Fuel Mixture

WARNING: This page is about a different car, the 1990 Isuzu Trooper, 1990 Isuzu Pickup, and 1990 Isuzu Amigo. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Code 44 & 45: Flow Chart O2 Sensor - Lean/Rich Fuel Mixture

Courtesy of ISUZU MOTOR CO.

Fig 2: Code 44 & 45: O2 Sensor Circuit Diagram

Courtesy of ISUZU MOTOR CO.