D21 Hardbody 4WD V6-2960cc 3.0L SOHC MFI (VG30E) (1991)
Power Steering Pressure Switch: Description and Operation
Power Steering Load Switch
The power steering load sensor is mounted in the power steering high-pressure line. It signals the ECU when the pressure increases (indicating
extra engine load). The ECU can then compensate for the load and the engine idle will remain stable.