What Does Engine Power Reduced Mean?

March 2023 · 3 minute read

If you are getting an engine power reduced message in your car, it’s due to a safety reason. For whatever reason, your vehicle has intentionally reduced its power output. I’ll discuss this more as you continue reading this article.

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System Failure

It is possible that your car is experiencing some kind of system failure, which you’re seeing engine power reduced. If the power isn’t decreased, it could lead to more issues in your car, and it won’t be safe either. These functions and features are carried out by your car’s computer or what is referred to as the Powertrain Module (PCM).

A Reduction Of Engine Power

If the power in your is decreased by the computer, then you’re going to notice a reduction in the car’s acceleration as well. The car won’t accelerate as fast as it could, which is a safety feature. That’s not all, either. Power to the car can be cut off completely, which would not allow you to drive the car at all. Some cars will go into limp mode so that you can’t drive it, which is for your own safety.

The Cause of Reduced Engine Power

It’s not always to diagnose the exact cause of the reduced engine power message because there are numerous possibilities. If it does come on, there is definitely a problem that needs to be fixed in the car; that is something that is known.

Pedal Position Sensor

There could be problems with the pedal position sensor, which could easily trigger the engine power reduced message. Sometimes sensors can go bad and cause all kinds of errors in your car.

Throttle Position Sensor

If the throttle position sensor is bad, it could trigger the message as well. TP sensors that work with your car’s TAC system can go bad.

PCM And Data Network Issues

Modern cars are like computers with all kinds of functions happening. The computer can communicate with the car. If the network is messed up or there is something wrong with the PCM, then it could also cause the message to appear as well.

Overheating

It’s not uncommon for cars to overheat, when this happens, the PCM will trigger the engine power reduced message and functions.

How To Fix Engine Power Reduced

If you want to fix the engine power issues in your car, then you will need to have a diagnostic test done on your car to find the exact problem. The OBD-II Codes will make it easier for your mechanic or technician to identify and fix the problem.

Conclusions

Whenever the power in your car is reduced, it’s to protect the engine and help keep you safe as well. It’s best to not drive your car if you are getting an engine power reduced message. If you are already driving it, then slowly drive it and take it to a mechanic or the dealer to get it fixed.

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