Q: Car doesn't want to stay running. Low engine power and "throttle disabled" keeps coming up on the screen.

asked by on

I have a impala and I left the radio on with the engine turned off and also had the lights are on well my battery died a friend gave it a jump so I could drive it and It was fine for a day then the next day I ran the radio It didn't die but I turned it off and kept the lights off when we went to move the car it started and then it died saying reduced engine power and a disabled throttle so the next morning I tried it again I was able to move this time and it ran and I turned it off I went and got my stuff got back in the car I started up no reading was coming across the screen so I had it down the driveway I made about 50 feet and the disabled throttle and low engine power light came on again and it died I don't think taking it to the mechanics going to help because if they plug their machine up to it I'm afraid it's not going to have it's reading on my screen to show up my brother noticed when the readings come up my gas pedal go straight to the floor and does nothing

My car has 140000 miles.
My car has an automatic transmission.

Hi there. This is an indication of a faulty throttle position sensor. This is a sensor that monitors the position of your foot on the gas pedal relative to the throttle plate inside the throttle body.

As you move your foot up and down on the pedal, this sensor relays this information to the car’s computer which then controls the amount of fuel it provides to the fuel injection system. When this is not working properly, you may experience the symptoms you have described. If you would like to move forward with a throttle position sensor replacement, or have a professional diagnose the loss of power problem, then a certified technician from YourMechanic can visit your car’s location to perform services.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Car doesn't want to stay running. Low engine power and "throttle disabled" keeps coming up on the screen.

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: I have a 2008 Dodge Charger I'm having a problem getting it to start I've changed the starter I've changed the battery charger cha

If you are referring to intermittent or otherwise faulty operation of the starter motor itself, versus a situation where you have normal cranking but hard starting due to a fuel, ignition, or air induction fault, then the required diagnostic will...

Q: Rough idle and car dies - 2007 Chevrolet Impala

Hey there. This is a common sign of a dirty or failing idle air control valve. The idle air control valve monitors the air intake as it is mixed with fuel prior to being injected into the engine. This valve...

Q: I have to manually open the throttle plate to start my truck. What causes the throttle plate to stay closed?

This suggests you may have a bad throttle control actuator. This is a module near the intake that operates the opening and closing of the throttle plate. This works in conjunction with the throttle position sensor which monitors your gas...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.