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Throttle position sensor help

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Old Sep 29, 2015 | 02:41 PM
  #1  
Farmboypowerstroke's Avatar
Farmboypowerstroke
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Throttle position sensor help

Code p0122
Dead pedal sometimes service engine light on

Bought new sensor, installed it now severice engine light stays on and the pedal is completely dead.
So I put the old sensor on for now since it works most of the time.
Part number for the sensor I put on it F4SZ 9B989 AA

Is there a different sensor I need?
Or do I have to replace the whole pedal assembly?
 
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Old Sep 29, 2015 | 03:27 PM
  #2  
Safooma's Avatar
Safooma
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From: Cottage Grove OR
What year? I have a 99.5 and just dealt with this. I wound up buying the whole assembly.....


I got an oem one from a ford dealer on ebay for $220.

The first thing to do is to take the pedal assembly out(it's only 3 bolts and two connectors) and clean the switch and the sensor with some contact cleaner. This worked for me for over a year.

Amazon.com: Hosa Cable D5S6 Deoxit Contact Cleaner Spray: Amazon.com: Hosa Cable D5S6 Deoxit Contact Cleaner Spray:



While you have the assembly out, check the part number of the TPS thingy. If it is PN - F81Z-9F836-AB, then you can get an oem ford one(the entire assembly) here:


http://www.ebay.com/itm/231269309848?_trksid=p2057872.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT

Looks like the price has increased since i purchased mine, but this is still the best deal going on the OEM parts. I just swapped out the entire assembly, took the old sensor and IVS out, cleaned them up and tossed them in the glove box along with my extra cps and clutch pedal bushing.

Note that you can buy the position sensor from napa/dorman/etc, but I found nothing but negative experiences when i was researching.

Good luck!
 
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Old Sep 29, 2015 | 03:46 PM
  #3  
Thomas White's Avatar
Thomas White
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Originally Posted by Farmboypowerstroke
Code p0122
Dead pedal sometimes service engine light on

Bought new sensor, installed it now severice engine light stays on and the pedal is completely dead.
So I put the old sensor on for now since it works most of the time.
Part number for the sensor I put on it F4SZ 9B989 AA

Is there a different sensor I need?
Or do I have to replace the whole pedal assembly?
Try reinstalling the TPS.

Disconnect Battery
Install TPS
Rec-connect Battery
KOEO (DO NOT START)
Clear Codes
Clear KAM
Cycle Key Off/On
Start Truck
Allow 15 - 30 seconds.
Drive Vehicle
 
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Old Sep 29, 2015 | 08:09 PM
  #4  
Farmboypowerstroke's Avatar
Farmboypowerstroke
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Originally Posted by Thomas White
Try reinstalling the TPS.

Disconnect Battery
Install TPS
Rec-connect Battery
KOEO (DO NOT START)
Clear Codes
Clear KAM
Cycle Key Off/On
Start Truck
Allow 15 - 30 seconds.
Drive Vehicle



I wish that would have worked, but it didn't.
Thanks though
 
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Old Sep 30, 2015 | 06:41 AM
  #5  
Thomas White's Avatar
Thomas White
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You may want to return that defective part.
 
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