IDL voltage from ECU is show 4volts when measure with multimeter


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Is it okay for my IDL voltage from ECU to show 4 volts when I measure with the multimeter?
My starlet engine stall whenever I press accelerator pedal very I test the 3 terminal TPS connector from ECU when I switched on the engine and these where the results
PSW 5volts
E1 0volts
IDL 4 volts
Is my IDL voltage okay ?
Isnt it supposed to be close to zero like 0.5volts?
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