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How To Reset Reduced Engine Power Light

Reduced engine power light (RPL) is one of the most common warning lights on cars. If you experience this light, it’s important to know how to reset it. Your car’s battery may be low, and the RPL may be serving as a warning that your car needs to be restarted so that the battery can recharge. Or, it may mean that there’s something wrong with one of your engine components and that you need to take it in for repair. In either case, knowing how to reset the RPL is essential if you want to keep your car on the road. Here are instructions on how to do just that.

What is a Reduced Engine Power Light?

If your car exhibits one or more of the following reduced engine power symptoms, you may need to reset the reduced engine power light:

-The car won’t start

-The car takes a long time to Accelerate or decelerate

-The engine revs lower than normal

How to Reset a Reduced Engine Power Light

If your car has a reduced engine power light on, it means that part of the engine is not working at its full potential. In some cases, this can be fixed by resetting the light. This guide will show you how to do it.

To reset the reduced engine power light, first make sure you have the correct tools and know how to use them. You’ll need a battery tester, a flat head screwdriver, and an adjustable wrench.

To reset the reduced engine power light, first disconnect the negative battery cable. Then use the screwdriver to remove the three screws that hold down the plastic cover over thelight bulb. Next, remove the bulb from its socket.

Now use the tester to check whether there is enough juice left in your battery to start your car. If there isn’t enough juice, replace your battery and repeat steps 2-4. If there is enough juice, you can skip step 5 and go straight to step 6.

To reset the reduced engine power light, connect one end of an adjustable wrench to one side of the bulb socket and connect the other end ofthe wrenchto another side ofthe socket. Hold ontothe ends ofthe wrenchand twist it in a clockwise motion untilyou hear or feel something click insidethe socket. This will releasetheOldLightBulbfromitsNewLightBulbSocketsandreplaceitwith athe NewLightBulb . Congratulations! Your Reduced Engine

What to do if the Reduced Engine Power Light Comes On Again

If the Reduced Engine Power Light comes on again, follow these steps to reset it: Disconnect the negative battery cable. Open the hood and locate the PCM (Powertrain Control Module). It is typically located under the rear of the car near the exhaust system. Remove the two screws that hold it in place and disconnect the connector. On some models, there may be a small black board attached to this connector. Carefully remove this board by pulling straight up on it and then remove it from its mounting bracket. Also remove any cables or connectors that are connected to it. Do not touch any of the electrical components on this board! Clean all of the solder joints on this board using a minimal amount of soldering flux and a fine-tip solder gun. Replace the PCM by reassembling in reverse order, making sure that all cables and connectors are properly connected. Replace the screws and reconnect the negative battery cable before closing the hood. The Reduced Engine Power Light should now turn off when you start your engine. If not, repeat these steps until it does turn off.


If your car is exhibiting reduced engine power, there are a few things you can do to try and reset the light. Some common causes of this issue are bad air filters or a dirty fuel injectors. In either case, following these steps should help resolve the problem: 1) Check all of the vacuum hoses and connectors for any damage or leaks. 2) Remove any obstructions in the carburetor or fuel injection system. 3) Inspect both oxygen sensors (if equipped). If one is faulty, remove it and have it replaced. 4) Verify that all spark plugs are properly seated and firing correctly.