Features and Benefits:

• Discuss the strategies the Powertrain Control Module (PCM) is programmed with to identify engine misfires
• Provide a generic diagnosis and repair strategy the technician can use to efficiently troubleshoot and repair the system
• Provide a method of verifying the repair
• Furthers your technical skills through continuing education
• Designed for the experienced automotive technician

The Powertrain Control Module (PCM) monitors the engine operation for misfires and counts the number of misfires that occur in a specified number of engine revolutions. Misfires generate unburned hydrocarbons and increase the load on the catalytic converter. If the misfire rate is excessive, the catalytic converter can overheat and be damaged. Under these conditions it is also likely that unburned hydrocarbons could pass through the converter, creating excessive emissions.