What does code P1121 mean on Acura vehicles?
The throttle position signal is lower than expected by the PCM.
OBD-II Code Acura
P1121 — Acura — Throttle Position Lower Than Expected
The throttle position signal is lower than expected by the PCM.
Common symptoms
- Poor throttle response.
Possible causes
- Faulty TPS sensor
- throttle body issues.
Initial recommendation
Check TPS sensor and throttle body.
Safety notice
This information is for guidance only. Brand-specific codes may vary by model, year, engine, transmission and vehicle configuration. It does not replace a physical inspection or diagnosis by a qualified mechanic. If the vehicle is unsafe to operate, avoid driving it and seek professional inspection.
Analyze this code with MecaOBD
Use the app to combine Acura code P1121 with your vehicle's actual symptoms for more complete diagnostic guidance.
Go to the app View more brands