Many technicians have approached misfire diagnosis by swapping ignition coils or other components between cylinders. Access to these components is challenging on many vehicles, therefore, this technique can be ineffective. This class will identify requirements for combustion to occur such as fuel delivery, ignition, and engine mechanical operation. Then, we will explore various techniques to effectively identify the cause of an engine misfire using scan data and oscilloscope waveform analysis. Case studies will be used to demonstrate these techniques. After completing this class, a technician will be able to: Attendees will be able to: Describe basic combustion principles. Analyze scan tool data. Verify ECM commands for ignition & fuel. Interpret oscilloscope waveforms for misfire diagnosis. Evaluate relative compression results.
Matthew has been a Professional Technicians Seminar Instructor for Standard Motor Products since 2004. After college Matt worked at new car dealerships for 15 years, and then worked for independent repair shops for several years. Matt currently has 11 ASE certifications. He has been an ASE Certified Master Technician since 1981. He also has an ASE L1 Advanced Engine Performance Certification.