how to fix a sticky throttle on Porsche Cayenne E3 (2018-Present)

Solution

1. Preparation

• Tools Required: OBD-II scanner, socket set, cleaning spray (throttle body cleaner), soft cloth, multimeter.
• Disconnect the battery to prevent electrical shorts and ensure safety.

2. Inspect and Clean Throttle Body

• Sub-steps:
  1. Locate the throttle body, typically between the air intake and the intake manifold.
  2. Remove any air intake ducting connected to the throttle body using a socket set.
  3. Inspect the throttle body for carbon buildup and dirt.
  4. Use throttle body cleaner and a soft cloth to gently clean the inside of the throttle body, ensuring the throttle plate can move freely.
  5. Reattach the air intake ducting securely.

3. Check and Adjust Throttle Position Sensor (TPS)

• Sub-steps:
  1. Locate the throttle position sensor on the throttle body.
  2. Disconnect the TPS wiring harness.
  3. Use a multimeter to measure the voltage output of the TPS while manually moving the throttle plate.
  4. If readings are outside the manufacturer's specifications, replace the TPS.
  5. Reconnect the TPS and ensure it is secured.

4. Inspect Accelerator Pedal Assembly

• Sub-steps:
  1. Remove the covering panel from the driver's footwell to access the accelerator pedal assembly.
  2. Check for any obstructions or debris that may cause binding.
  3. Lubricate pivot points with a suitable lubricant if the pedal feels stiff.
  4. Reassemble the footwell cover securely.

5. Reconnect Battery and Test

• Reconnect the battery terminals and ensure they are tight.
• Start the vehicle and check for any warning lights.
• Test the throttle response by pressing the accelerator pedal to ensure it operates smoothly.