Replaced the battery on my 2001 SLK and cleared the ESP light. Short test drive found misfire present. EPA rules require that catalyst damaging misfire must cause the Check Engine Lamp (CEL) to flash - alerting driver to correct misfire before catalyst is damaged by overheating. I do not have a flashing CEL with this misfire.
Is there a drive schedule that will cause the controller to run the misfire diagnostic and correct a possible spark advance issue?
Is there a drive schedule that will cause the controller to run the misfire diagnostic and correct a possible spark advance issue?