Fuel Injector

Fuel Injector Pressure Drop 20 kPa (3 psi)

Pressure Drop Calculation

1. Subtract the minimum pressure from the starting pressure for one fuel injector. The result is the pressure drop value.
2. Obtain a pressure drop value for each fuel injector.
3. Add all of the individual pressure drop values except for the injector suspected of being faulty. This is the total pressure drop.
4. Divide the total pressure drop by the number of fuel injectors that were added together. This is the average pressure drop. If the difference between any individual pressure drop and the average pressure drop is more than 20 kPa (3 psi), perform the following procedure:

* Perform the Fuel Injector Cleaning procedure. Service and Repair
* Perform the Fuel Injector Balance Test. Refer to Fuel Injector Diagnosis. Fuel Injector Diagnosis (w/J39021 or w/Tech 2)