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Home >> Buick >> 2008 >> Allure CXL >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 6 (Engine Control System & Fuel System - 3.6L - Troubleshooting & Diagnosis) >> Fuel Injector Balance Test with Special Tool >> Diagnostic Fault Information

Diagnostic Fault Information

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Fuel Injector Balance Test Example

Cylinder 1 2 3 4 5 6
First Reading 360 kPa (52 psi) 360 kPa (52 psi) 360 kPa (52 psi) 360 kPa (52 psi) 360 kPa (52 psi) 360 kPa (52 psi)
Second Reading 195 kPa (28 psi) 138 kPa (20 psi) 195 kPa (28 psi) 195 kPa (28 psi) 235 kPa (34 psi) 195 kPa (28 psi)
Amount Of Drop 166 kPa (24 psi) 222 kPa (32 psi) 166 kPa (24 psi) 166 kPa (24 psi) 125 kPa (18 psi) 166 kPa (24 psi)
Average Range: 156-176 kPa (22.5-25.5 psi) Injector OK Fuel Injector - Too Much Pressure Drop Injector OK Injector OK Faulty Injector - Too Little Pressure Drop Injector OK