Where is the throttle position sensor located on a 2004 Mercury Mountaineer (4.6L)?

the service manual has this, buy one, I have them for all my cars for 50 years owned, and I have a scan tool (over 6 year) for OBD2 USA care so I never miss out on CKP or CMP or P03xx errors ever.
well they are on the CAM shafts. SOHC is good to hear.
step 1 skipped, did not scan the PCm to see what P03xx errors called DTC you have.
page 1 in cam CMP error page states
Are DTCs P0340, P0344, P0345 or P0349 present?
location pages.
and below are the SOHC, CMP.


see red arrow below.
it must go to the cam and tells PCM which cylinder is fining
video

https://youtu.be/BkYXfimhBs8?t=71

good the rear side is this, BOSS phasor


see hat yellow error, this boss is picked up by CMP
now you know how it works on SOHC. only.

http://www.bing.com/videos/search?q=1999+Mercury+Mountaineer+camshaft+position+sensor+location&FORM=HDRSC3

http://www.bing.com/images/search?q=1999+Mercury+Mountaineer+camshaft+position+sensor+location&FORM=HDRSC2

If you are talking about a trouble code for the pressure sensor, the sensor may be telling the computer the fuel pressure is too high. The sensor is mounted in the fuel rail on the engine.

Start by checking your TPS switch (throttle position sensor) located on the throttle body . They turn while your foot pushes the accelerator pedal . TPS voltage goes from 0 to 5 volts and is easily checked with a volt meter .

run fault codes to check for sensor problems first as it may be a throttle position sensor problem or MAP/MAF sensors

Should be on the left or right side of the throttle body opposite side of where the accelerator cable attaches.The TPS is a reostat (Variable resister) that is turned by the armature running through the throttle body.

Hi, your truck must use a stepper motor to control the throttle. The computer is getting a signal from the accelerator position sensor and trying to rotate the throttle, but it is having trouble either rotating the throttle or sensing the position of the throttle. If you can give me the exact trouble code, I may be able to say more about what the problem is.

Several conditions could show DTC Throttle Position Sensor



Check this link to know additional details: manual/04/21j6674h/cip0120.

Keep us updated, hope helps.

You mean cabin filter?

The engine air filter is pretty much
easy to see,as it has to be at the end
of the induction ducting to throttle

it could be either --throttle body sticking open will cause constant acceleration when u lift off pedal-cableless accelerator [electric gas pedal ]if a sensor or electronic part shorts out can open throttle body causing acceleration- would need to have it diagnosed to find out which problem is correct