why does my Acura MDX YF3 (2022-Present) exhaust smell like rotten eggs

Solution

1. Preparation

• Gather tools and parts needed for the repair.
• Ensure the vehicle is parked on a flat, level surface and the engine is cool.
• Disconnect the battery to prevent electrical shorts.

2. Check and Replace Oxygen Sensors

1. Locate the Oxygen Sensors: Identify the upstream and downstream oxygen sensors on the exhaust system.
2. Remove the Sensors: Use a socket wrench to carefully unscrew the sensors from their mounting points.
3. Install New Sensors: Apply anti-seize compound to the threads of the new oxygen sensors and screw them into place securely. Torque to manufacturer specifications.
4. Reconnect Wiring: Ensure that the electrical connectors are securely reattached.

3. Inspect and Replace the Catalytic Converter (if necessary)

1. Remove Exhaust Components: Disconnect any exhaust hangers and bolts securing the catalytic converter to the exhaust system.
2. Inspect the Converter: Check for signs of damage, blockage, or overheating. If the converter is damaged, proceed to replace it.
3. Install New Catalytic Converter: Position the new catalytic converter and secure it with bolts and exhaust hangers. Torque the bolts to manufacturer specifications.
4. Reattach Exhaust Components: Ensure all parts are properly aligned and reconnected.

4. Check Fuel System

1. Inspect Fuel Injectors: Remove and clean or replace the fuel injectors if they are leaking or clogged.
2. Test Fuel Pressure: Use a fuel pressure gauge to ensure the fuel pressure is within specifications. Adjust or replace the fuel pressure regulator if necessary.