Wells Vehicle Electronics Videos Exceed 3 Million YouTube Views
The award-winning automotive diagnostic videos created by Wells Vehicle Electronics have exceeded 3 million views on YouTube and are now being watched at a rate of more than 160,000 times per month.
Diagnostic Solutions: MAF Sensor Testing Methods
Troubleshooting MAF sensor problems can become a major headache for diagnostic technicians because the failure is usually one that involves a calibration error, rather than an outright electrical or mechanical failure.
YouTube Views of Wells Technical Videos Double to 2 Million Over Past 10 Months
The free online technical training videos offered by Wells Vehicle Electronics have been viewed 2 million times on YouTube. This number has doubled in just the past 10 months, making the Wells online video library one of the aftermarket’s most popular training tools, regardless of medium.
Diagnostic Solutions: Testing Fuel Delivery Systems – Checking the Basics First Can Facilitate Diagnostic Strategy
Vehicle fuel delivery technology has evolved to include conventional, pulse-modulated and direct fuel injection systems, with each having a specific set of components and testing issues. Gary Goms explains how to avoid some of the most common mistakes in diagnosing fuel delivery systems.
Pulling Codes: Mean and Lean with Shades of Gray
This article will document the infamous P0171 code – Lean Condition. A fuel system lean condition can be broken down into three subsections, namely, fuel pump performance, fuel quality and injectors. Keep in mind this is only a starting point, but it is a good place to start.
Diagnostic Solutions: The Relationship Between PCMs, Sensors and Actuators
Not that I recommend installing used PCMs, but I occasionally need a rebuildable core to replace a missing or badly damaged powertrain control module (PCM). But lately, I’ve noticed that it’s becoming increasingly difficult to find a used PCM for an older import at a local auto salvage yard. While it’s sheer speculation on my part, this apparent shortage of PCM cores might be caused by too many poorly trained technicians replacing PCMs to solve sensor-based problems. In most of these cases, the problem remains unsolved even as the original and fully functional PCM is casually tossed into the trash when the tech moves on to another job.
Tech Feature: Troubleshooting Internal Errors – Solving Piston and Ring Breakdowns
Rings that do not seal well during all four phases of the four-cycle combustion process can reduce an engine’s power potential by 20, 30, 40 or more horsepower, depending on the engine’s displacement, compression ratio and speed. Rings that leak during the intake stroke will reduce air velocity and volumetric efficiency.
Diagnostic Solutions: Solving Insufficient Fuel Problems
Solving cranking, no-fuel or insufficient-fuel driveability problems on late-model imports can be challenging, especially if a technician doesn’t take into account the way that modern fuel systems operate. Some vehicles, for example, limit vehicle speed by deactivating fuel injectors. In some rare cases, a miscalculation in vehicle speed can cause an insufficient fuel condition.
Pulling Codes: Status Really Does Matter
Many modern-day fuel systems offer a new look into system status definitions. It’s become very important to extend our understanding well beyond the concepts of simple “open loop” and “closed loop” status. This month, we will explore the new fuel system definitions that are present on many of today’s vehicles. We’ll begin our discussion by looking at each one on an individual basis.
Diagnostic Dilemmas: Solving No-Code Performance Complaints
For many diagnostic techs, nothing is more discouraging and time-consuming than dealing with a no-code driveability complaint. Today’s second-generation On-Board Diagnostics II (OBD II) can be extremely sophisticated because the OBD II powertrain control modules (PCMs) in modern vehicles have far more computing capacity than did the older, pre-1996 OBD I vehicles. Nevertheless, we occasionally have to deal with a no-code performance complaint on a modern OBD II vehicle.