Code 44 - Oxygen Sensor-Lean Fuel Mixture

Disconnect oxygen sensor connector. With ignition ON and engine stopped, check for repeated clicks from duty solenoid.
If there are repeated clicks, repair carburetor. If no repeated clicks are heard, replace duty solenoid.

Fig 1: Code No. 44 Schematic, O2 Sensor-Lean Fuel Mixture

Courtesy of ISUZU MOTOR CO.

Fig 2: Code No. 44 Harness Diagram, O2 Sensor-Lean Fuel Mixture

Courtesy of ISUZU MOTOR CO.

Fig 3: Code No. 44 Flow Chart, O2 Sensor-Lean Fuel Mixture

Courtesy of ISUZU MOTOR CO.