On the highway, the most frustrating thing that can happen to you while driving ‘engine power reduced Chevy Equinox’ light to come on suddenly. It’s annoying, and there’s no way to discover why it’s turned on. Therefore, you should examine it at home or a repair shop.

If you see the message “Engine Power Reduced,” it signifies your system has encountered some difficulties. Your Chevy Equinox now has a lower top speed. This can assist in keeping your car safe and reduce the damage done to the engine by the issue. It’ll get you to a mechanic so you can have it fixed, but that’s about it.

You shouldn’t take long trips in your automobile if the weather is terrible. This is because the engine operates differently when set to this mode. This manner of driving may reduce the engine’s lifespan. Read more to know about how to fix engine power-reduced Chevy Equinox.

What Does “Engine Power Reduced Chevy Equinox Mean?

Any time the ‘Engine Power Reduced’ message appears on your dashboard, you should know that your vehicle’s engine has lost some of its previous power to protect itself. The Chevy Equinox’s ECU, or Electronic Control Unit, is a built-in computer. When it senses something out of the ordinary, it triggers the low-power alert for the engine.

Effects on Vehicle Systems 

When the system detects an issue, this mode is activated, and less vital parts of the vehicle’s electrical system get less power. Systems like the radio and HVAC are affected.

Driving Restrictions and Implications 

You may be frustrated by the inability to accelerate beyond a specific limit. While in this mode, you might choose to deactivate non-essential driving features. Your Chevy Equinox’s low engine power light suggests an issue with either the vehicle’s engine management sensors or the ECU, leading to inefficient engine operation.

The ECU’s Protective ‘Safe Mode 

When the ECU identifies an unfamiliar problem, it resorts to a “safe mode,” operating with reduced power but preventing a total breakdown.

Potential Risks of Extended ‘Limp Mode’ Driving 

The lowered power indicator light can still be driven. This state of operation is known as the ‘Limp Home Mode.’ Continued driving with the engine in this reduced power state might lead to severe complications as the engine operates in a modified manner.

Why Does Engine Power Reduced On Chevy Equinox

The OBD II system stores several diagnostic trouble codes when the low-power indicator occurs. Experts can use these codes and the ECU’s computations to zero in on the precise location of the problem. A high-quality code scanner is what you need. A high-quality code scanner will significantly facilitate this procedure. The Engine Power Reduced Chevy Equinox alert may appear as a result of the following common issues:

how to fix engine power reduced chevy equinox

1. Car TAC System

In most cases, the alert is triggered by a problem with the Throttle Actuator Control (TAC) system. This technology has replaced the linkage and throttle body in today’s automobiles. The C5 Corvette, released in 1997, was the first production vehicle with this technology.

The two Accelerator Pedal Position (APP) sensors and the TAC system’s PCM monitors work together to assess whether or not the driver intends to accelerate. After that, the Throttle Position (TP) sensors are used to determine the precise throttle response.

AFTER RECEIVING ALL RELEVANT DATA, the PCM controls the throttle through the actuator motor. This aids in the regulation of engine airflow. Dirt particles on the throttle body can trigger this mode.

2. Connectors

It’s also possible that a damaged wire or harness is at blame. The cables, clamps, and harnesses should be checked first if there is a problem with the vehicle. Check for any indicators of difficulties with the connections and make sure they are all secure.

If a damaged cable is discovered, it must be fixed immediately. Or, better still, make the adjustment permanent.

3. Clutch

Clutch failure is another possible cause of diminished engine performance. When this occurs, unusual noises might be heard coming from the vehicle. There will also be issues with your pulsation. Transmission problems are usually fixed by having the unit serviced.

4. Bad Mass Airflow Sensor

An inaccurate airflow reading cannot be obtained from a mass air sensor that has not been appropriately maintained or broken. Since this is the case, it is unsurprising that the computer may incorrectly determine the amount of fuel to inject.

5. Oxygen Sensors

Your Chevrolet Equinox has an Oxygen Sensor that provides an accurate reading of the oxygen content of the used fuel. This sensor aids in maintaining a healthy air-to-fuel ratio.

However, sensors typically stop functioning if they grow rusty. However, you should look into an oxygen sensor-related code like P0160 if it appears when you plug in the code scanner.

This may set off the “reduced engine power” sensor and prevent additional harm to your car.

How To Fix Engine Power Reduced Chevy Equinox

If the engine’s performance drops for whatever reason, you can pinpoint the cause by using this technique:

  1. To get started, you’ll need an OBDII scan tool. It helps decipher the ECM’s error messages. The error codes aim to pinpoint the line of code where the malfunction occurred.
  2. Let’s pretend the fuel pressure gauge is malfunctioning. Fuel pressure controlled control has a corresponding P0090 OBDII code.
  3. This code should thus appear on the scanner if there is a real problem with the fuel pressure. Having the code in hand allows for a more thorough investigation of the problem.
  4. OBDII scanners may have a wide price range and come in many flavors. Invest in the best one you can reasonably afford.

Fixing Chevy Equinox’s Weak Engine Performance

The first step in fixing this problem is to accurately diagnose it. The procedure is not simple at all.

There are a variety of causes for this notice to appear on the dashboard, all of which further muddy the waters. It’s also important to remember that the likely cause of this warning appearing might change based on the make and model of your car.

These solutions will help you restore full Engine Power Reduced Chevy Equinox:

Check For Diagnostic Trouble Codes (DTCs)

Check for DTCs by using a code reader or scan tool. These might point you in the appropriate diagnostic path for additional investigation. Remember that only having these codes does not constitute a full diagnosis. They point you in the right direction for where to start digging into the data.

Previously, we established that issues with the TAC system are a possible root cause of this issue. These codes will pinpoint the likely origin of the issue. Then, you may take the required steps to fix the problem.

Look Up Technical Service Bulletins (TSBs)

Automakers frequently publish Technical Service Bulletins (TSBs). When attempting to resolve such a situation, they can also greatly assist.

Technical Service Bulletins (TSBs) assist by outlining fixes for widespread problems. And this usually does the trick to solve the issue. Some automobile owners have encountered this issue in the past, and it address in various TSBs.

Most car problems already have a Technical Service Bulletin (TSB) documenting the best way to fix them. You may save time and money by sticking to this process.

Consult The Factory Repair Information

Before attempting any repairs, you may want to review the manufacturer-supplied repair manual.

As was previously said, the alert is being triggered because of your vehicle’s make and model. You might waste time and energy chasing your tail if you don’t do your homework first.

More detailed diagnosis instructions may be found in the most up-to-date repair manual. If you’re having trouble fixing your car, these steps could assist.

However, before beginning the repair process, a proper diagnosis is require. In addition, being well-prepared by learning the relevant information beforehand is a huge help.


There are several situations in which a driver could select the engine-saving Engine Power Reduced Chevy Equinox mode. It’s essential to consider each problem’s unique set of potential solutions. Furthermore, there are several approaches to addressing these issues.

The meaning of “engine power reduced” on a Chevy Equinox is now you know. Feel free to cruise around town in your Chevy as often as you like. Don’t go crazy if you start having engine trouble, though.


Nancy is a dedicated writer with years of experience. She is focused on the latest vehicle technology and high-end cars of various brands. She combines her passion for automotive advancements with a clear, engaging writing style, making complex topics accessible and enjoyable for her readers.

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