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Home >> Mitsubishi >> 2002 >> Lancer LS >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Self-Diagnostics >> Diagnostic Tests >> DTC P0121: Throttle Position Sensor Circuit Range/Performance Problem >> DTC Set Conditions
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DTC Set Conditions

Check conditions are when 2 seconds or more have passed since the starting sequence was completed, engine speed is more than 2000 RPM and volumetric efficiency is more than 60 percent. Judgement criteria is when TP sensor output voltage has continued to be 0.8 volt or less for 2 seconds.

Check conditions are when 2 seconds or more have passed since the staring sequence was completed, engine speed is less than 3000 RPM and volumetric efficiency is less than 30 percent. Judgement criteria is when TP sensor output voltage has continued to be 4.6 volts or more for 2 seconds.