Operation CHARM: Car repair manuals for everyone.

Part 3 of 3

Injector Balance Test Procedure Part 3 Of 3:




Injector Balance Test Procedure:




Example:






CHART TEST DESCRIPTION
Number(s) below refer to circled number(s) on the diagnostic chart.
1. Engine cool down period (10 minutes) is necessary to avoid irregular fuel pressure readings due to "Hot Soak" fuel boiling.
2. Fuel pressure should be within specified range. If not, refer to A Charts/Chart A-7 Fuel System Diagnosis. Related Tests, Information and Procedures
3. Fuel pressure should hold steady. If not, refer to A Charts/Chart A-7 Fuel system Diagnosis. Related Tests, Information and Procedures
4. If the pressure drop of all injectors is within 10 kPa (1.5 psi) of the average fuel pressure drop, the injectors are flowing properly. The actual amount of pressure drop is calculated by subtracting the second pressure reading from the first pressure reading.