Question about 1993 Ford F150 SuperCab

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Replace tps switch - 1993 Ford F150 SuperCab

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This is an easy fix. The TPS is on the drivers side of the Airhorn. The Airhorn is the metal part behind all of the Air filter plastic ductwork.

The TPS is mounted with 2 screws and has 1 electric connector. The only part to mess up is the matching of the slot and ridge on the Butterfly shaft. These contact areas must fit together before you screw the part into place. There is an elongnated slot for one side of the TPS and it allows for a slight RPM adjustment when tilted.

I do not know what problems you are trying to fix, but on V-8 engines there is a channel underneath the Airhorn that can get sooted up. Later it will code "Insufficent EGR flow". With the Ductwork off there are only 8 bolts to remove for the Airhorn and 1
$10 gasket to replace. People have reported their vehicles run much better after cleaning this channel. Good Luck on your repair.

Posted on Jul 28, 2010


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How to replace the tps on a 1991 tracker? the one i bought has 4 wires the one on the tracker has 6 wires

the 1991 G16a has a pig tail connector, must have 4 wires.
and shares the Injector connector (tricky pin pulls, and all)
that connector you gander is the injector /TPS connector
it has 6 pins but only 4 are for TPS. (yellow /.red are injector)
see page 3 below, for what all this means. last link below.

try to keep in mind, your car has a VIN engine code U (not 6) code 6 , has no pig tail, TPS.
GM uses U code to say, engine is 8valves, TBI, G16a , my guess, (no photos) is your bought TPS is
with tails, and is correct for your 8v engine.

Install, (need feeler gauges to do it)
it's not just thrown on to the car, it must be calibrated.
or the idle switch WILL fail.(and more)
one maker of this TPS is here: (hard to find)
SMP makes one. sMP #TH-147 is for 8V tbi.
do not use 16valve parts on your car.

here is the calibration steps.

the factory page is here

and page 3 here

the last page shows the tricky pin pulls....

you must pull the old pins.' one by one.
then put in then new TPS pins , in the same places of old
matching COLORS.
then do the calibration steps above, using feeler gauges.
same basic steps, from 1989 to 1998.
in 1999 they calibrate it to 0.5vdc, only.
later years, it auto-calibrates.
if the new TPS fails to cure the problem
post the symptoms, and win.

Jun 17, 2016 | 1991 Geo Tracker

1 Answer

Throttle pedal position sensor switch D circuit low input how do I solved this problem

Replace the TPS sensor. Bad place to put the TPS. Under your foot, where water and such contaminates it.

Oct 23, 2015 | Cars & Trucks

1 Answer

Smog Filed due to error P0121 Throttle/Pedal Position Sensor/Switch A Circuit range/performance.

Replacing TPS will reset the light but will stay in memory until the computer is reset. For help to change throttle body sensor check out you tube :How To Install Replace Throttle Position Sensor Chevy Silverado GMC Sierra.

Mar 23, 2015 | 2007 Chevrolet Silverado 1500 2WD

1 Answer

I have a 1992 dodge d350 and all my light work exept the running lights

No the TPS has nothing to do with lights. You likely need a new headlight switch and headlight switch connector, they get burned from the amperage load over time. Remove the switch and inspect it fro signs of discoloration from heat damage.Always replace the switch and the connector as one repair.Solder new connector in and heat shrink the solder joints, never use crimp connectors..

Sep 04, 2012 | Dodge Ram 350 Cars & Trucks

1 Answer

What's a tps switch

TPS = Throttle Position Sensor. it used to monitor the position of the throttle in an engine. it usually located on the butterfy spindle so it can directly monitor the position of the throttle valve.

Feb 27, 2012 | 2000 Mercury Cougar

1 Answer

What do the diagnostic codes 1221 and 1271 mean

The vehicle either needs the TPS switch adjusted or replaced

TPS = Throttle Positioning Sensor

Apr 30, 2011 | Chevrolet Chevy Cars & Trucks

1 Answer

Is there any way to get around changing the whole throttle body to replace the tps

the Throttle position switch,is a little black switch "mounted on the drivers side of the throttle body",There would be no reason to remove the throttle body,the TPS is held on by two or small screws

Jan 27, 2010 | 1999 Chevrolet Camaro

3 Answers

What are these codes po123 and po121

These two codes are pointing at your TPS.
Your car may have a rough or high idle, or it could be surging or stumbling when accelerating and decelerating

The causes could be any of the following:
Your TPS may not be secured properly
You could have a short in the wiring to your TPS
The connectors to your TPS may be loose
Your TPS may be bad

Oct 06, 2009 | 2000 Jeep Grand Cherokee

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