Basic Type of Throttle Body Injection System in Automotive

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Basic types of electronic fuel injection systems used in automotives can be divided into Throttle Body Injection (TBI) and Multipoint/port Injection (MFI). The picture shows you with the typical TBI system. This diagram might help a mechanics or do-it-yourselfers performs basic fuel system pressures testing.

do-it-yourself fuel system pressures testing

Some vehicles may require additional testing for proper fuel pressure diagnosis. Get your vehicle’s service manual for more details.



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