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Home >> Mitsubishi >> 2002 >> Mirage LS, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Self-Diagnostics - 1.8L >> Diagnostic Tests >> DTC P0121: Throttle Position Sensor Circuit Range/Performance Problem >> DTC P0121 Set Criteria
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DTC P0121 Set Criteria

  1. Condition A

    Engine has been running for at least 2 seconds, engine speed is 2000 RPM or more and volumetric efficiency is 60 percent or more. DTC P0121 will be set when TP sensor output voltage is 0.8 volt or less for 2 seconds.

  2. Condition B

    Engine has been running for at least 2 seconds, engine speed is 3000 RPM or less and volumetric efficiency is 30 percent or less. DTC P0121 will be set when TP sensor output voltage is 4.6 volts or more for 2 seconds.
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