The throttle position sensor reading is outside expected parameters.
Have this diagnosed before driving further
Informational only. Consult a qualified mechanic.
Clean throttle body and replace TPS if needed.
The P0121 OBD-II diagnostic trouble code (DTC) indicates: tps range/performance. This is a high-severity powertrain code that your vehicle's onboard diagnostics system triggers when the throttle position sensor reading is outside expected parameters. If your check engine light is on with this code, you should have the vehicle inspected immediately before driving further.
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