When code P0121 occurs, it means that your Engine Control Module (ECM) recognized that your throttle position “A” circuit’s expected output voltage has either gone above or below the sensor’s expected range. When code P0121 is triggered, your ECM will go into failsafe mode.
How do I fix error code P0121?
What repairs can fix the P0121 code?
- Repairing or replacing the TPS connector.
- Repairing the wiring as necessary.
- Replace the TPS with a new sensor.
How do you fix throttle position sensor?
Zitat von Youtube: Also how to adjust the idle and you may need to additionally reset something called an idle position memory.
What happens when you unplug throttle position sensor?
Can I Bypass My Throttle Position Sensor? When you disconnect the throttle position sensor, take 30 seconds to turn on your ignition and wait for the engine to start, your vehicle should start properly. TPSes can only work if the ECU realizes they’re not working and adjusts the engine’s functioning accordingly.
Where is the throttle position sensor located?
A throttle position sensor (TPS) is a sensor used to monitor the air intake of an engine. The sensor is usually located on the butterfly spindle/shaft, so that it can directly monitor the position of the throttle.
How much is a TPS sensor?
The average replacement cost for the throttle position sensor is anywhere from $110 to $200. The parts cost is anywhere from $75 to $105 while the labor cost is anywhere from $35 to $95.
What is the code for a bad throttle body?
A faulty throttle body is one of the common causes of code P0121.
Can a TPS sensor cause no start?
When a TPS goes bad, then the car’s throttle body won’t function properly. It could either stay shut or it won’t close properly which is a severe issue. If it stays shut then your engine is not going receive air and it won’t start.
Can I clean my TPS sensor?
During this process, the throttle position sensor should not be cleaned due to the possibility of contamination or wire damage. The best way to preserve the sensor is to remove and replace it after cleaning is finished.
How do you know if your throttle position sensor is bad?
Symptoms of a Bad or Failing Throttle Position Sensor
- Car won’t accelerate, lacks power when accelerating, or accelerates itself.
- Engine won’t idle smoothly, idles too slowly, or stalls.
- Car accelerates, but won’t exceed a relatively low speed, or shift up.
Will disconnecting battery reset throttle position sensor?
The easiest way to reset your throttle position sensor is to unhook the negative cable from your battery for up to five minutes or to remove the fuse for your engine control module.
Can throttle position sensor affect transmission shifting?
The Throttle Position sensor measures the throttle position, which is controlled by the gas pedal. It is used to determine engine load and if it fails it can cause automatic transmission shifting problems.