Operation CHARM: Car repair manuals for everyone.
Home >> Chevy Truck >> 2000 >> S10/T10 P/U 2WD L4-2.2L VIN 5 Flex Fuel >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Testing and Inspection >> Scan Tool Testing and Procedures >> Scan Tool Data, Normal Values and Definitions >> Scan Tool Data Definitions - Powertrain Systems >> Rich/Lean Transition

Rich/Lean Transition

Range 0-255 counts: The PCM counts the number of times the Oxygen Sensor (O2S 1) goes from a high voltage (rich exhaust) to a low voltage (lean exhaust) within a 100 second period. Rich/lean transition should increment when the vehicle is operating within the Conditions for Setting in DTC P0133 or DTC P1133.
pro multis · About Operation CHARM