Here are some ways a plugged up catalytic converter can damage your car's engine:
- Increased back pressure: When the catalytic converter is plugged up, the exhaust gases cannot flow freely, which causes back pressure to build up in the exhaust system. This back pressure can make it difficult for the engine to push the exhaust gases out, which can lead to overheating of the engine or damage to its piston rings or valves.
- Lean air-fuel mixture: A plugged up catalytic converter can also cause the air-fuel mixture to become leaner than ideal. This lean air-fuel mixture can lead to knocking or pinging in the engine, which can damage the pistons and crankshaft.
- Increased fuel consumption: A plugged up catalytic converter can also increase fuel consumption. This is because the engine has to work harder to push the exhaust gases out, which consumes more fuel.
