throttle position sensor adjustment
 

is there a way to adjust the throttle postion sensor on a 2002 marquis 4.6l and if so how ?

I don't think there is any adjustment on the throttle sensor.. I would clean the throttle plate first and make sure it opens and closes freely.. if that is your problem.... I am not sure if this helps I need more input...

Replaced old one cause the check engine light came on with that code. Drove around a bit and same code came back with new sensor.

Is the throttle clean? Open and close ok? Also What code do you have... are all vaccum lines ok? how does engine run? Throttle position sensor is an R&R only no adjustment that I know... something else is wrong let me know

the tps is non adjustible you may have a bad new tps compare measurements with the old to tps to the new one

Non-adjustable,
Linkage binding or sticking?, free movement of throttle plate, returns to closed throttle?
TPS properly tightened down?
Check both sides of the plug for damaged/loose pins, pushed out pins/connections?
Check that you have voltage between VREF and SIG RTN at the TP harness connector?

I checked all the voltages and they were good. Do I got another sensor and now it works fine no light no sputtering. Gues it was just a defective sensor. Thank you everybody for your help.