my Genesis G70 has a delayed throttle response what could be wrong

Solution

1. Preparation

• Gather tools and parts.
• Disconnect the negative battery terminal to ensure safety.
• Allow the engine to cool if it has been running.

2. Inspect Throttle Position Sensor (TPS)

• Remove the electrical connector from the TPS.
• Use a multimeter to check the voltage output:
  • Expected range: 0.5V at closed throttle to 4.5V at wide open throttle.
• If the readings are outside this range, replace the TPS.

3. Check Accelerator Pedal Position Sensor (APPS)

• Remove the connector from the APPS.
• Use a multimeter to test the resistance across the sensor terminals.
• Compare readings with manufacturer specifications. Replace if faulty.

4. Clean Throttle Body

• Remove the throttle body from the intake manifold.
• Use throttle body cleaner and a soft cloth or brush to remove carbon deposits.
• Ensure all passages are clear.
• Reinstall the throttle body and torque to manufacturer specifications.

5. Inspect Wiring and Connectors

• Visually inspect wiring harnesses related to the TPS and APPS for frays or corrosion.
• Use a multimeter to check continuity and resistance in the wiring.
• Repair or replace any damaged wiring or connectors.

6. Test Electronic Throttle Control (ETC)

• Reconnect the battery and start the engine.
• Use a scan tool to check for live data and ensure the ETC is functioning within normal parameters.
• If anomalies are detected, consider replacing the throttle control module.