Check Fuel Pressure Regulator

* Check Fuel Pressure Regulator Performance by measuring voltage.

1. Back probe and measure voltage using GDS and connecting channel A (+) voltage probe to High side and channel B (+) voltage prove to Low side.

Fig 1: Screen Display - Normal Waveforms Of FPR At Engine Idle

Courtesy of KIA MOTORS AMERICA, INC.

Channel A: FPR High - Max at Approx 14.2V

Channel B: FPR Low - Max at Approx 15.3V

Fig 2: Screen Display - Normal Waveforms Of FPR At Approx 2000RPM

Courtesy of KIA MOTORS AMERICA, INC.

Channel A: FPR High - Max at Approx 14.2V

Channel B: FPR Low - Max at Approx 15.3V