Unlock the power of your diagnostic tools: A guide to performance and driveability analysis In this article, we'll discuss using PIDs to quickly assess engine performance operation and how to effectively gather data during a road test. By Scott Brown, Technical Editor p Figure 5 - Adjusting y-axes to reveal TCC slip Photo courtesy of Scott Brown T oday's powertrain systems have grown quite complex and demand a certain skill set when it comes to addressing engine performance and driveability challenges. In fact, many of the skills needed to successfully resolve the wide range of issues presenting operational problems on these vehicles demand similar skills one is required to obtain in pursuit of an electrical engineering (EE) degree. Now of course the EE degree is great for the design side and most certainly dives much deeper into various subjects. However, we as diagnosticians are dealing with the real-world results of these systems and as we all know, things don't always work out as planned. This is why we need to possess an eclectic skill 12 PTEN DECEMBER 2023 www.VehicleServicePros.com set to help us better understand and conquer vehicle performance problems. For review, here's a list of the core areas of study for an EE: * Circuit theory * Digital logic * Signal processing * Control systems * Electronics * Electromagneticshttp://www.VehicleServicePros.com