On a Honda VTEC system, which of the following inputs are used by the PCM to determine whether to energize the VTEC oil solenoid?
A) The RPM must be in a specific range
B) The vehicle speed must exceed 19 MPH
C) The coolant temperature must exceed 140 degrees F
D) All of the above are correct

Question

Quizplus · Accepted Answer

The Honda VTEC system uses inputs such as engine RPM, vehicle speed, and coolant temperature to determine the optimal timing for engaging the VTEC system. The PCM requires the engine to be running within a specific RPM range, the vehicle to be traveling faster than 19 MPH, and the coolant temperature to be above 140 degrees Fahrenheit to activate the VTEC system by energizing the VTEC oil solenoid.

On a Honda VTEC System, Which of the Following Inputs