Mar 6, 2015 · Can some one help a newbie out and explain what this code p2121 is, what I need to do to get my truck fixed. It was driving fine and I hit a bump and it threw this code. I pulled to …

Oct 28, 2021 · Hello guys and girls I have A 2008 Dodge Cummins 2500 6.7 with about 205,000 miles, and I had this code pop up P2121 and P2127 for awhile now, and I have tried rerouting …

Mar 16, 2008 · Was enjoying a nice day with wife on interstate city traffic when all the sudden the diesel acted like it ran out of fuel. Pulled onto shoulder with truck idling, reved the engine a …

Aug 1, 2022 · I have a 2012 Cummins Automatic 4wd that I'm seeing this code on. Sometimes it the red lightning bolt will flash and I'll get dead pedal until the truck is restarted, and …

Aug 21, 2009 · Any one know what the code p2121 means this is for a buddy, he already replaced the throttle position sensor?

Mar 20, 2019 · I recently bought a 2012 Dodge Ram 3500 and get’n frustrated with this code. Since I’ve bought the truck I’ve changed the tps, throttle body delete, h&s mini max, cleared …

Jul 3, 2016 · DTC P2121 (throttle/pedal position sensor switch d/ circuit range/performance) Shows up when I run a DTC on the tuner I drive the truck 120 miles to work everyday ( yes …

Feb 22, 2011 · Had the same problem (p2121 & p2123) with my 04.5 at around the same time this post originated. Did a bunch of reseach on this site and replaced my accelerator pedal position …

Dec 28, 2024 · 2004 3500 nv5600. Anyone have experience with p2121 pedal code along with other strange electrical issues. I got my first dead pedal occurrence 5-6 years ago. Randomly …

Dec 13, 2017 · So my 2007 Cummins has been acting up lately. I get a code p2121. I get weird throttle response and goofy shifting. The code reads accelerator pedal position sensor. …