why is my Toyota Corolla E140 (2006-2013) stalling 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 battery to prevent electrical shock during repairs.

2. Fuel System Inspection

1. Check Fuel Pump:
   • Locate the fuel pump access panel (if applicable).
   • Use a multimeter to test the fuel pump voltage during ignition.
   • Replace the fuel pump if it doesn't receive power or if it fails to operate properly.
2. Examine Fuel Filter:
   • Locate and remove the fuel filter.
   • Inspect for clogs or restrictions; replace if necessary.

3. Ignition System Repair

1. Inspect Spark Plugs:
   • Remove spark plugs using a socket wrench.
   • Check for wear or fouling; replace plugs that show significant wear.
   • Gap the new plugs to manufacturer specifications.
2. Test Ignition Coils:
   • Use a multimeter to check resistance across the ignition coils.
   • Replace any faulty ignition coils.

4. Air Intake System Cleaning

1. Throttle Body Cleaning:
   • Remove the air intake hose from the throttle body.
   • Use throttle body cleaner and a soft cloth to clean the interior surfaces.
   • Reattach the air intake hose securely.

5. Final Assembly

• Reconnect the battery.
• Start the engine and check for any abnormal sounds or indications of issues.
• Reinstall any components or covers that were removed during the process.