* Faulty oxygen sensor. An oxygen sensor is a device that measures the amount of oxygen in the exhaust gas. The sensor sends this information to the engine computer, which uses it to adjust the fuel mixture. A faulty oxygen sensor can cause the engine computer to run the engine too lean or too rich, which can lead to a loss of power.
* Clogged catalytic converter. A catalytic converter is a device that reduces the amount of pollutants in the exhaust gas. The catalytic converter can become clogged with soot and other debris over time, which can restrict the flow of exhaust gas and cause a loss of power.
* Faulty spark plugs. Spark plugs are responsible for igniting the fuel in the engine. Faulty spark plugs can cause a misfire, which can lead to a loss of power.
* Worn-out clutch or transmission. A worn-out clutch or transmission can cause a loss of power, especially when the vehicle is under a lot of load.
