DTC P050A: Cold Start Idle Air Control System Performance: General Description
WARNING: This page is about a different variant/trim than selected.
Catalyst Light Off is a time for catalyst to reach at the target temperature that it is functioning properly. When engine is cold, ECM performs catalyst light off offset to increase the temperature of it up to proper temperature that catalyst is functioning properly. ECM offers idle RPM more than 50 RPM than normal for catalyst light off.