Jeep down on power? It could be the throttle body and pedal sensor - Jeep Wrangler JK (07-18)

The Jeep Wrangler JK uses a “fly by wire” throttle system where the gas pedal has a sensor that sends varying voltage to the PCM depending how far you push the pedal. Then the PCM sends info to the throttle body to regulate air/fuel.
With any electronic sensor, sometimes they go bad.
If your Jeep Wrangler has P2135 it is considered “drive by wire”. Which means that it uses sensors and actuators to control the throttle body.
This video documents how to replace the throttle sensor and the throttle body.
My check engine light came on and also the little lightning bolt icon came on the dash. When I pulled the codes, it came up with P1235 and P0123 - Basically, the voltage between the gas pedal sensor and the throttlebody weren’t matching so the gas pedal was reading differently to the throttlebody which causes the throttlebody not to open as far as it needs to be relative to the gas pedal. In serious cases, the vehicle goes into limp mode which limits speed to 30 miles an hour. 
You press the gas pedal.
The accelerator position sensor sends a signal to your Wrangler’s PCM.
The throttle position sensors (A/B and C/D) confirm the position of the throttle blade and the PCM adjusts the throttle position based on this input.
The two throttle position sensor signals need to AGREE with one another AND the accelerator position sensor.
If they don’t agree with one another, P2135 is set.
Drive by wire throttle systems use a sensor on the gas pedal to transmit the pedal position (accelerator position sensor) to the PCM, which controls the throttle body.
Throttle body: TB1163D
www.autozone.com/fuel-deliver...
Accelerator Pedal Sensor: SU10253
www.autozone.com/engine-manag...

[@MrJTime]

This video literally saved my life. I was headed down a dark path of drugs and alcohol and clown school. But I found purpose in fixing my JK! I’m a new man.

[@coalroller24]

I have 2011 jku and it has lightning bolt still i replaced throttle body and accelerator pedal ,new battery, cam shaft sensor, tempature coolant sensor, map sensor, intake sensor, full tune up with new coil. The problem is still there runs like crap cuts out? Anybody else having this problem ??

[@charliesmith8433]

Why don't you just say what's wrong with the Jeep we don't want to hear about your life story

[@everettrobinson7103]

Late model Jeep - built in code reader. Cycle ignition 3 times and DTC should appear on dash where mileage is displayed.

[@terencegillespie6675]

drive by wire is a cable throttle. Drive by Wifi is more like it.

[@cowlumbus]

Been wrenching on my own cars for 40 years...with very few exceptions OEM parts are not better, almost never for the cost. Seems that world "Mopar" gets that crowd more geeked up more than another fan base.

[@eddieristau4214]

I've learned majority of what's built from the aftermarket for parts are not up to calibration like the OEM part. May run ok but stuck with a check engine light on.

[@francismwila639]

My 2008 Jeep wrangler JK Unlimited has the Red Lightening Bolt. I have so far replaced Throttle Body, Accelerator Pedal and Camshaft position sensor. The red lightening bolt hasn't gone and my Jeep has no acceleration.

[@fwschnaar3179]

Great Video… Fighting this Issue right now…. Side note… Every time you work on your Jeep, and are doing something regarding the Electronics… Disconnect your Battery 👍 … Edited …. There is a video of a Tech that uses a extra long 1/4” extension and a universal socket and is able to pull that top bolt out with out all that extra work 🤔👍

[@lexlazarus88]

This was very helpful. I'm so glad people like you take the time to film the repairs.

[@crazyadub2010]

Thanks!!!! Single mom, just got my dream Jeep 2016 wrangler unlimited jku! Having this issue now. 💪 thanks for the tips. I’m going to give it a go! 💪

[@JEGsGarage]

Dude that intro was awesome!!!!! Nice job!

[@danhambrick6331]

Nice job Joey...💪👍👍

[@cindyorman4527]

Joe I think you’re great This is my 3rd jeep. First was a 69 CJ5 with a 3 speed V8 Then an 83 sport with a 5 speed and now I’ve come full circle with a 2012 JKU that I absolutely love. 63,000 miles on her. It bucks and jerks sometimes when I’m going uphill and I think it’s a throttle body sensor. Think I’m going to try to just reset it before anything else. I don’t have any lights on so far. Any ideas or suggestions are welcome and appreciated. Thanks for all you do! Cindy

[@hoselrocket2001]

An important thing to note is the torque spec on the 4 throttle body bolts. I believe it's only about 65 in-lbs (~5.4 ft-lbs) so it's very easy to over-torque them and cause the housing to unknowingly crack..

[@voidexploration9470]

Just had my engine light come on this morning to my way to work. It ran fine, but then i tried to go faster than 70, and the rpm jerked and didn't excellerate the way it should so im thinking it may be a throttle body issue. Currently at 93k miles on the jeep wrangler jk rubicon

[@lstruggy]

Bro I don’t have torque spec tool doing this tom so just don’t go ham on tightening the 4 bolts of the tb and do it cross cross pattern right just snug enough right?

[@kevinstuart4123]

thanks for video im having the same issue in a jeep wrangler sahara turbo 2020 down in power lean mode i cant find anything to ae where the throlley body is and how to remove it thanks hope someone can help🙏🏻🙏🏻

[@shawnmcandrew6923]

if you remove the right most bracket that hold the plate its alot easier i believe its a 5mm bolt, just one more piece to move out of the way.

[@AGBeatsOnDaBeat]

Lol @ 18mins:15seconds. Much help. Thank you