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.