Q: Have trouble code p2101. Cleaned the throttle body unit and still bad. Idle is always high surge like idle.

asked by on

Truck idles is very high and surged. Was told might need to replace the 4th relay?

My car has 156000 miles.
My car has an automatic transmission.

Hi, thanks for writing in. Code P2101 is titled Throttle Actuator Control Motor Circuit Performance. Instead of using a traditional throttle cable, your vehicle uses an electronic throttle control. In this system, the throttle control module receives input from sensors, such as the accelerator position sensor. It then uses this information to control the throttle using a stepper motor. The code you have indicates a problem somewhere in this system. It could be anything from a wiring issue to a failed throttle control module. I recommend having a professional, such as one from YourMechanic, diagnose and repair this problem for you.

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. Have trouble code p2101. Cleaned the throttle body unit and still bad. Idle is always high surge like idle.

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: Misfire and low oil pressure

The oil light comes on when the oil pressure drops below a certain level: usually about 8 psi. Since the oil pressure will depend to some degree on how fast the oil pump is turning, you are probably seeing it...

Q: emmissins test says i need oxygen sensor heater

Hello, thank you for writing in. The error message you got about the low threshold means the oxygen sensor has failed, the fuel system is off, or the catalytic converter is having issues. The amount of information available isn't enough...

Q: The radio will not illuminate.

Hi there: In most cases, this problem is caused by an electrical wire internally that has shorted and causes the screen to not illuminate. It can be fixed by a professional electronics expert, but the cost of doing this is...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.