what could cause my Toyota Tacoma N300 (2016-Present) to stall while driving

Solution

1. Preparation

• Gather necessary tools and parts.
• Ensure the vehicle is parked on a level surface and the engine is cool.
• Disconnect the negative battery terminal to prevent electrical shorts.

2. Check Fuel System

• Sub-steps:
  1. Remove the fuel pump relay from the fuse box.
  2. Attach a fuel pressure gauge to the fuel rail.
  3. Reconnect the battery and turn the ignition to the "ON" position (do not start the engine).
  4. Record the fuel pressure reading; it should be within the manufacturer’s specifications (usually between 50-60 psi).
  5. If pressure is low, replace the fuel pump.
• Tools Required: Fuel pressure gauge, socket set.

3. Inspect Ignition System

• Sub-steps:
  1. Remove the spark plug cover to access spark plugs.
  2. Check each spark plug for wear or carbon build-up; replace if necessary.
  3. Inspect ignition coils for cracks or signs of arcing; replace if damaged.
  4. Reassemble the ignition components and reconnect any electrical connectors.
• Tools Required: Socket set, torque wrench, spark plug socket.

4. Clean Throttle Body and MAF Sensor

• Sub-steps:
  1. Disconnect the air intake duct to access the throttle body.
  2. Use throttle body cleaner and a soft cloth to clean the throttle body.
  3. Disconnect the MAF sensor and clean it with MAF sensor cleaner.
  4. Reassemble the intake system securely.
• Tools Required: Throttle body cleaner, MAF sensor cleaner, soft cloth.

5. Test Battery and Charging System

• Sub-steps:
  1. Use a multimeter to check battery voltage; it should read around 12.6 volts when the engine is off.
  2. Start the engine and check the voltage again; it should read between 13.7 to 14.7 volts.
  3. If the voltage is low, replace the alternator or battery as needed.
• Tools Required: Multimeter.