Item #: TPS98502
  • About This Product
  • Reviews
  • Install And Tech Information


The most common problem when a APPS sensor is failing is a "Dead Pedal." You will be driving down the road and hit the accelerator and NOTHING will happen. Your truck will not go. The most common codes associated with this problem are the 0121, 0122, 222 and 223. Another issue is a surging or a bucking and this oftentimes will not throw any codes.

This is an aftermarket (TIMBO) throttle position sensor for '98.5-'04 Dodge Cummins Turbo Diesel trucks and is not a factory-style replacement. This TPS is not application specific and works on trucks equipped with either a manual or automatic transmission.

You will reuse the original bell-crank plate that the throttle linkage attaches to with the one we carry. Only the sensor is replaced, and calibrated to a specific voltage range. It has proven to be a quality part that our customers have been happy with.

Detailed instructions are included that explain how to install and calibrate the throttle position sensor.

*Does not work on trucks with the APPS installed under the driver's side battery.

*Does not work on trucks with the Banks exhaust brake installed.

NOTE: If this part has been installed on your truck it is non-returnable.


Write a review
Quick and Easy
Jan 2, 2021  |  By Kevin
Took less than 30 minutes to install and calibrate. Took care of my PO121 code.

Nov 17, 2020  |  By forest white
it was easy to install but my dead pedal came back after about 3 months of having it

Timbo APPS
Sep 25, 2020  |  By Bill Hollinger
Fantastic product! Easy install and adjusting. Could not be happier! This new APPS also fixed another issue I had. My cruise control used to hunt and create a Slinky effect by over throttling then under throttling. It is smooth as glass now! Bravo Timbo!!!

Work great
Jul 19, 2019  |  By Grady
Fixed my dead pedal issue

04 dodge 3500 cummins
Jan 22, 2019  |  By Mark
Works great just installed it today so fare so good seems to have way better throttle response

Quick, easy repair
May 19, 2018  |  By Bill Caver
With Genos instruction sheet and their you tube video, the installation was a snap! The part fit perfectly, and best of all, fixed the "dead throttle" issue I was having with my '99 quad cab. As always, quick shipping, attention to details, and everything needed to install and calibrate the unit. And when I say everything, I mean everything, including the paper clip needed during the test/calibration!

May 18, 2018  |  By Max
The instructions with the tps were easy to follow and the install was easier than I thought it would be.

APPS Replacement
Apr 1, 2018  |  By John Peterson
My original APPS logged 289,000 miles. This replacement is easy to install with good instructions provided. There is a noticeable improvement in throttle response.

APPS TPS replacement
Jan 22, 2018  |  By William Collister
Been on my 1999 2500 for about 5 years without a hiccup.

Works perfectly
Nov 25, 2017  |  By Coby
Install and calibration took 20 minutes total. Directions are simple and easy to follow. Truck drives smoother than ever before.

Dodge Ram APPS
Oct 25, 2017  |  By Dave Rosentreter
Part was in stock. Easy to order. Price was fair. All instructions were correct for the install. Wish they had a Canadian store.

Works perfectly.
Oct 24, 2017  |  By James Gaar
Recommended by your regular client Charlie McCoy. He installed it right out of the box, did the calibration and BAM I'm back on the road.

Worked great
Sep 12, 2017  |  By Ryan
Solved my surging throttle problem, ive put a few hundred miles on so far no problems.

APPS sensor
Aug 28, 2017  |  By Mike
Easy install. Instructions were clear, no problem installing fixed problem with the trucks "dead pedal"

Aug 6, 2017  |  By Matthew
It worked as desired.

All around GREAT
Jul 2, 2017  |  By Sam
Installing this sensor fixed my P0122 and P0121 codes on my 02 Cummins. Easy installation thanks to the foolproof instructions. Fast and reasonably priced shipping to my house in Canada. They threw in 2 free stickers, some jelly beans, a catalogue and have an excellent service staff to call any time. It's impossible to find quality matched with service and low prices like this in Canada. I will now be using Geno's Garage for all my parts and recommending to all my friends.

Jun 11, 2017  |  By Jim Howard
Great product, fast shipping

Dodge APPS
Apr 10, 2017  |  By Vaudra Nunley
I had a check engine light on along with the "dead pedal" in my 01 24V. Order a new sensor from Geno's and it fixes my problem. Great price and great installation instructions

Good solution
Apr 3, 2017  |  By Andy Harman
The APPS was easy to install according to the instructions. Only took me about 20 minutes, and that includes finding the tools. Has solved the check engine light throwing codes.

Mar 14, 2017  |  By Scott
The part fixed the problem and the instructions we great

Throttle sensor
Mar 10, 2017  |  By Ed
Lowest price l found anywhere. Quick delivery and was exactly the part l needed

Great product
Feb 27, 2017  |  By Scott Bertsch
Easy install and just works.

Great service
Feb 10, 2017  |  By Danny Estep
Best customer service and great part!

Feb 1, 2017  |  By Harold Hearon
Works great! Needed no adj. Runs like new.

timbo apps
Dec 24, 2016  |  By Michael
Made my truck run like a new one. Very easy install and calibration.

Dec 23, 2016  |  By LEONARD
Great product, no issues. Truck runs much better

Dec 12, 2016  |  By Rex
Easy install good instructions

So far, so good.
Nov 29, 2016  |  By Justin
So far I'm pretty happy with this TPS sensor. It has taken care of my issue of the dead pedal. I've had it on for about a week now and its working great.

Accelerator Pedal Position Sensor
Sep 30, 2016  |  By Marc Espin
My 1998 Dodge Ram 24v Cummins had the "Dead Pedal" syndrome (error code P0121). The new APPS sensor arrived within a few days, installed easily and solved my problem. Very happy!

Install and Tech Information

Download the installation instructions.pdf. (1.0 meg)