Most Ford vehicles on the road today are equipped with the Electronic Returnless Fuel (ERF) systems. These systems are tough to diagnose, especially if you don’t know the operation and components and how it is different from conventional systems. AVI and John Thornton will give you the information you need to know to diagnose and repair Ford ERF systems.
In this program John explains why ERF systems are tough to diagnose and why conventional fuel system testing does not work. He covers the components, how to identify ERF systems, the different types of ERF systems, how they work and how to diagnose them.
This course explains how to check the fuel pump duty cycle command and how to use the duty cycle to determine fuel pressure. John also shows you how to test the pressure transducer and how to locate and test the fuel pump driver module. This course is full of great tips to help you diagnose ERF systems.
- Hands-on testing using the scanner and lab scope
- Why you can’t ramp the fuel pump
Runtime: 1.5 hours
Video Companion Guide Included