How To Bypass Reduced Engine Power. If you’ve ever had your car go into reduced engine power mode, you know how frustrating it is. Thankfully, there are several things you can do to fix this problem. While some of these fixes will cost money, they’re much cheaper than paying a mechanic to do the same thing. In fact, if you have the time and know-how, most of these solutions are relatively quick and easy. So let’s get started!
Check the fuel pump relay
The fuel pump relay is a small electrical component that’s used to switch on and off the starter motor. The purpose of this relay is to control how much current flows through the ignition system. In addition, it also prevents your engine from overheating by cutting off power when too much heat is generated during starting.
The fuel pump relay is usually located near other relays in your vehicle’s engine bay or underdash panel.
To check if it’s defective:
- First remove any wires connected to it carefully so you don’t accidentally burn yourself with live voltage or short out anything else nearby (you may want help from someone with more experience here).
- Next, examine the contacts on either side of this relay for any corrosion or damage—this could be causing intermittent problems with its function which makes diagnosing difficult unless you know exactly where these issues are occurring (and since we’re not electricians ourselves). If no problems are evident then try swapping out this part with another identical one from another vehicle until you find one that works as expected–you might want two spare ones handy just in case though!
Replace the air filter
The air filter is a common culprit for reduced engine power. This component sits inside the engine compartment, and it filters out dust and other particles from entering the combustion chamber during operation. If this piece becomes clogged with dirt, rust or debris, it’s not able to do its job properly—and that could be causing your car to run poorly.
If you suspect that your air filter has become dirty—or if you haven’t replaced it since 15k miles (24k km) have passed—you can replace it yourself without hiring a mechanic. It’s an easy job that requires only basic tools like an adjustable wrench and screwdriver set; just unscrew the old one and install a new one in its place!
Replace the fuel filter
To replace the fuel filter, first shut off the engine and allow it to cool. Next, locate your vehicle’s fuel filter, which is usually located in a metal box near where the gas tank is located.
- Unscrew and remove any screws holding down the lid of this box (if applicable), then open it up and reach into its interior with your hand until you find the fuel filter.
- Remove the old one by turning counterclockwise until it becomes loose enough to pull out entirely, then discard it by placing on top of some newspapers or other absorbent material so that any spilled fluid will not damage anything else nearby in your car.
- Clean off any dirt or grime around where this component was previously mounted inside this container before installing new one back into place by placing onto mounting surface as far down as possible before screwing down with several turns (or more) depending on what kind brand/model specific instructions specify for use models being used together .
Check and reset your throttle body
The throttle body is the part of your car that controls air flow into your engine. When this part becomes dirty or clogged, it can cause problems with acceleration.
To check and reset your throttle body:
- Clean up the throttle body using a clean cloth to remove any dirt or grime from the surface.
- Remove any debris that’s stuck in there with a straightened paperclip or other small pointed object.
- With the key still on, turn on your AC system while pressing down on one of the pedals (usually brake). If you see white smoke escaping from under the hood, then don’t worry—this means everything is working fine! If not try turning off ignition and repeat steps two through four until there are no more white clouds coming out of anywhere near where you’re checking for leaks.
Replace the intake manifold gasket
To test for a bad intake manifold gasket, you’ll need to have an OBD II scanner or a handheld vacuum pump available.
Turn the ignition switch off and wait at least 10 seconds before performing this procedure.
Connect the scanner or vacuum pump to the engine’s diagnostic port (or data link connector).
Start the scan tool or power up your handheld vacuum pump and follow its prompts. If prompted, check “B-Pipe” (or “Nozzle Diaphragm”) in order to find out whether there’s any air pressure lost when starting up your car.
Inspect the wiring harness of your throttle body
- Inspect the wiring harness of your throttle body.
- Check for damage, loose wiring and corrosion.
- Check that all connectors are properly attached to the throttle body.
- Look for any damaged wiring harnesses or connectors within the throttle body itself that may be causing a malfunction in its operation.
Clean the throttle body
- Remove the throttle body.
- Clean the throttle body using a cleaning solution.
- Replace the throttle body if needed, and then reconnect it (if applicable).
- Test the throttle body to ensure that it is working properly before fully reassembling your vehicle’s engine bay.
This can sometimes fix the issue, although it’s likely to return eventually
This can sometimes fix the issue, although it’s likely to return eventually. This is a temporary fix that requires no tools and little time, so if you’re willing to try this option before taking your vehicle into a shop, then give it a shot.
Reduced engine power can be frustrating, but there are things you can try to fix it!
While reduced engine power is a common problem, the good news is that there are things you can try to fix it yourself. If you’re not sure how to do this, ask another driver or your mechanic for advice.
If those steps are out of your comfort zone, taking your car in to a mechanic might be your best option. A qualified mechanic will be able to troubleshoot the issue and get your car back up top its former glory.
The reduced engine power warning can be a frustrating thing to encounter, especially if you don’t know what’s causing it or how to fix it. And while there are some more serious causes of this problem, like a bad throttle body or wiring harness, these can usually be fixed with an inspection and reset (or in extreme cases, replacement). More often than not though, the cause of this problem is something simple that you can take care of yourself by following the steps above. So when you see that dreaded message on your dashboard, stay calm and take a minute to try out these steps!