VTEC Oil Pressure Switch Circuit Too High?

[DeJackson]

VTEC oil pressure switch circuit being too high may be due to the need for an oil change or a faulty VTEC solenoid valve. 1. Reasons for VTEC oil pressure switch circuit being too high: The need for an oil change and a faulty VTEC solenoid valve. If the solenoid valve fails to open, oil cannot enter the rocker arm chamber, keeping the rocker arm oil pressure switch in a closed state, which results in excessively high voltage in the switch circuit. 2. Inspection and repair: (1) Check if the solenoid valve's ground and power supply wires are shorted to the positive terminal. (2) Verify whether the pressure signal feedback from the pressure switch is normal. (3) Check if the solenoid valve is functioning properly. (4) Inspect if the pressure switch is operating correctly. (5) Examine the oil pressure in the VTEC system's oil passages.