Powertrain
generic / SAE
P2109
Throttle/Pedal Position Sensor A Minimum Stop Performance
The ECU detects that the throttle position sensor A signal at the closed-throttle stop does not match the learned minimum value. The mechanical or electrical zero reference of the throttle has drifted out of the expected range, often after cleaning, replacement or wear.
SystemPowertrain
Typegeneric / SAE
GroupP2
Range / number1 / 09
Possible causes
- Carbon deposits on throttle plate high
- Throttle position sensor drift high
- Idle/throttle relearn not performed medium
Symptoms
- Check engine light on
- Reduced throttle response, possible limp mode
- Hesitation or surging
- Idle too high or too low
Inspection / repair
- Difficulty: medium
- DIY: possible
- Estimated cost: 80–400 €
- Estimated time: 0.3–1.5 h
- Component: throttle position sensor
- Component: throttle body
- Component: throttle actuator
- MIL / check engine light
- emissions-relevant
- drive cycle required
- limp mode possible
Sources
References
sae:J2012