Code 44: Lean Exhaust Indication: Notes

WARNING: This page is about a different car, the 1990 Pontiac Firebird and 1990 Chevrolet Camaro. However, it is still accessible from the selected car via links, so may be relevant.

Code 44 is set when the oxygen sensor signal voltage on circuit No. 412 remains less than .2 volt for at least 50 seconds and the system is operating in closed loop.