FixVault

Auto Idle Stop System: Notes

To reduce fuel use and to minimize tailpipe emissions, auto idle stop system shuts off the engine by stopping fuel injection when the vehicle comes to a stop.

Based on inputs from various sensors and control units, the PCM may or may not allow auto idle stop under different operating conditions.

Fig 1: Auto Idle Stop System Operating Conditions Diagram
G06429665Courtesy of AMERICAN HONDA MOTOR CO., INC.