P2119moderate severityPowertrain
Throttle Actuator Control Throttle Body Range/Performance
on 1998 Audi A8 3.7L V8 · AWD
What this code means
The throttle body is not achieving commanded positions within expected tolerance.
Symptoms
- Hesitation
- Check engine light
- Rough idle
- Inconsistent throttle feel
Common causes
- Worn throttle body bore
- Carbon deposits
- TPS drift
- Weak motor
Diagnostic steps
- Monitor TPS vs commanded position
- Clean throttle body
- Check for mechanical issues
Repair notes
Clean throttle body. Replace if worn beyond tolerance.
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