Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Admission Valve
FUNCTIONS WITHIN THE SYSTEM
The ECM transmits the control signal to the admission valve and controls the throttle position according to the driving conditions.
INDIVIDUAL FUNCTION WITHIN THE SYSTEM
The admission valve consists of admission valve, admission valve control motor and admission valve position sensor.
INDIVIDUAL OPERATION
Admission Valve Motor
The admission valve motor is operated by the ECM and it opens and closes the throttle valve.
Admission Valve Position Sensor
These sensors are a kind of potentiometers which transform the admission valve position into output voltage, and emit the voltage signal to the ECM. In addition, these sensors detect the opening and closing speed of the admission valve and feed the voltage signals to the ECM. The ECM judges the current opening angle of the admission valve from these signals.
Component Location
The admission valve is installed between the air cleaner and the turbocharger.
NO RELATED
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.