P120 (TPS)

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larrybyrnes
Posts: 5
Joined: Tue Jul 04, 2006 9:47 am
Car: 1997 Infiniti J-30
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I have replaced the Throttle Position Sensor on my J-30 after getting the following diagnostic codes: P120 and P1705 (mfg. specific powertrain code). From what I've read on this site, sounds like I need to clear all the codes, run the car for a few days and check the codes again. Before I do this, can anyone tell me what the correct voltage readings should be for the Throttle Position Sensor? I do have a voltmeter. Thanks!.......Larry

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elwesso
Posts: 30810
Joined: Sun Feb 23, 2003 4:52 pm
Car: 94 Infiniti Q45t 5 spd
2007 BMW M Coupe
2007 Infiniti G35 S 6MT
Location: Indiana
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Fully closed it should be at about .5 volts as read at the ECU and over 4 volts at wide open.
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