Fuel System Diagnostic Tips: The Trainer Video Series

Fuel System Diagnostic Tips: The Trainer Video Series

Motor Age — Engines using electronic fuel injection take great pains to accurately measure the air coming in. The engine’s management computer (or ECM, for “engine control module”) needs that information in order to add the proper amount of fuel to maintain a “lambda” ratio. Once the ECM knows how much air is in the engine, it calculates the amount of fuel needed and then translates that to the amount of time it needs to open the fuel injectors in order to deliver the required quantity of fuel.

But all that work goes out the window is there is a problem getting the fuel to, or through, the injectors. In this edition of the Motor Age How2 video series, The Trainer, we’ll show you some tips and techniques for testing the fuel system’s ability to deliver as promised.

Motor Age also holds a series of web casts on various topics of interest to automotive technicians. Go to the Motor Age web site for more information and to sign up for these webcasts.

Source: Motor Age

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About the Author

Nick Taylor

Nick Taylor is the SureTrack Community Administrator and a Senior Applications Specialist at Mitchell 1 with over 25 years of experience with electronic repair data systems. Nick previously worked in the automotive dismantling and engine rebuilding industries.