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Discussion Starter · #1 ·
What can cause P1120 Throttle Position Sensor A Circuit Low Input code? This started after I installed a new TPS. I have checked and re-checked the plug in and it snaps into place. The contacts look ok too. So what is up?
 

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1999 3.0 SilFro
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There are two little tabs inside the TPS where the throttle body shaft pushes it. They have to be on the leading edge of the thing or it won't register anything.

Also, be certain you used the right part number...
 

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Discussion Starter · #5 ·
There are two little tabs inside the TPS where the throttle body shaft pushes it. They have to be on the leading edge of the thing or it won't register anything.

Also, be certain you used the right part number...
:banghead: Ok this damn thing really should not be so picky about it's position. I have tried 3 times to adjust it and keep getting the same code.
Just to be straight, the throttle shaft right edge should be above or below the right tab of the sensor when it is on correctly?
 

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1999 3.0 SilFro
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What kind of throttle body do you have? The MTX has a different action than the ATX and the SVT...
 
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