Powertrain
generic / SAE
P0639
Throttle Actuator Control Range or Performance Bank 2
The drive-by-wire throttle actuator on bank 2 does not respond as commanded - actuator slow, gearing slipping, or position feedback offset against actual blade angle.
SystemPowertrain
Typegeneric / SAE
GroupP0
Range / number6 / 39
Possible causes
- Actuator sticking due to carbon high
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: 200–800 €
- Estimated time: 1–3.5 h
- Component: throttle actuator b2
- Component: throttle position sensor b2
- MIL / check engine light
- emissions-relevant
Sources
References
sae:J2012