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Home >> GMC >> 2002 >> Yukon Base, 5.3 T, RWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - System & Component Testing >> Fuel System (Diesel) >> Fuel Injector Balance Test With Tech 2 (6.6L) >> Test Description
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Test Description

The numbers below refer to step numbers in diagnostic procedure.

  1. 3

    A balance rate between -4 mm3 and 4 mm3 will not cause a driveability concern. A balance rate less than -4 mm3 , and between 4 mm3 and 14 mm3 will cause a driveability concern without any DTCs. A balance rate of more than 15 mm3 will set a DTC.

  2. 4

    This step determines if ECM can control a stable fuel pressure. A high balance rate may be caused by a fuel injector or compression only if ECM can control fuel pressure.

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