Throttle Actuator Control Throttle Body Range/Performance
What does P2119 mean?
The P2119 code means the vehicle's onboard diagnostic system has detected: Throttle Actuator Control Throttle Body Range/Performance. This is a critical severity code.
Common Symptoms
- Poor throttle response
- Engine hesitation during acceleration
- Throttle position not matching pedal input
- Intermittent reduced power mode
- Check engine light on
Probable Causes (Ranked by Likelihood)
- Carbon buildup affecting throttle plate movement Very High
- Electronic throttle body wearing out (slow response) High
- Throttle position sensor calibration drift Moderate
- Intermittent connector or wiring issue Moderate
- PCM throttle control algorithm detecting out-of-range operation Low
Step-by-Step Diagnostic Procedure
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Compare commanded throttle position to actual throttle position on scan tool -- difference should be less than 3%
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Clean throttle body and check for smooth plate operation throughout full range
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Monitor throttle position response time -- should move to commanded position within 100ms
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Check throttle body connector for intermittent contact or corrosion
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Perform throttle relearn after cleaning -- if code returns, replace throttle body
Frequently Asked Questions
Can I drive with code P2119?
You can drive short distances, but throttle response may be poor or intermittent. The PCM may enter reduced power mode if the throttle body performance deteriorates further. Get it diagnosed soon.
What is throttle body range/performance?
This means the PCM has detected that the throttle body is not responding as expected to commanded positions. The actual throttle opening does not match what the PCM commanded, or the response is too slow or inconsistent.
Should I clean or replace the throttle body?
Always try cleaning first -- it resolves the issue in over half of cases. Use throttle body cleaner (not carburetor cleaner) and a soft cloth. After cleaning, perform a throttle relearn. If the code returns after cleaning and relearning, replacement is needed.