VSP Diagnostic eNL / VSP Diagnostic & Repair - Jun 4th, 2024
 
 
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June 4, 2024
Understanding your tools and equipment for electrical circuit testing is crucial to performing competent diagnostics.
This damage to the fuel tank pressure sensor 5v reference wire occurred because the wire melted as it encountered the exhaust system. As the 5v reference wire found a path to ground, it pulled the signal low and created the elusive driveability symptom.
A technician was facing a strange issue with a 2015 Toyota Land Cruiser with a 5.7L V8 engine. It was experiencing what he described as a strange loss of power output. Motor Age Technical Editor Brandon Steckler jumped in to help with the diagnosis.
Figure 1- This single secondary ignition event displays a lot of turbulence. Although this can be caused by a few potential faults, the other captured data offers a diagnosis of a cylinder #3 integrity fault.
Intermittent misfire complaints can be some of the most difficult to solve simply because they can be the most troublesome to replicate and test for. However, having a structured game plan and understanding how to test and interpret the results keeps you ahead of the game.
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Let Motor Age Technical Editor, Brandon Steckler show you how to properly perform a voltage-drop test, how it affects circuit operation, and most importantly, how it will flush the underlying faults to the surface.
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