Don’t Get Locked Out!

Email address *

Password *

Remember me

Not a member? Register

Email address *

Password *

Confirm password *

Your personal data will be used to support your experience throughout this website, to manage access to your account, and for other purposes described in our privacy policy.

Already a member? Login

Diesel World

→ Submit Your Diesel Truck Photo for Diesel World Magazine cover page feature! ← → Vote for Your Favorite Diesel Truck to be on Diesel World’s Cover! ←

Close Ad

Up next

World’s First Full-Manual Valvebody, Four-Speed 68RFE

Don’t Get Locked Out!

PSA: 2021 and older fifth-gen Ram owners, don’t let your dealer reflash your truck! Tuned fifth-gen trucks receiving factory ECM updates have reported being locked out, with no way back in. Unfortunately, this likely means that having the CP4.2 to CP3 high-pressure fuel pump recall performed on a ’19-’21 truck will mean it gets treated to the reflash. This comes on the heels of the EPA pushing OEM’s to lock down their ECM’s in order to keep aftermarket calibrators out. The best advice? Ask your dealer not to connect or reflash your ECM while in their care. There is no way back in if they update your truck’s engine control module—at least for now.

Source: overland-industries.com

Subscribe Our Weekly Newsletter

P-Pump Cummins Shutoff Solenoid Swap

Help! My Truck Won’t Start! So there we were hundreds of miles from home, pulling a trailer, with a truck that wouldn’t start. Geez…aren’t 12-valves […]

Jason Sands
August 16, 2021

This Bagged 1992 Dodge D350 Cummins Is Pure Custom Diesel Chaos

Maverick Kerns Does What He Does There are certain sayings that seem to perfectly describe certain scenarios. For instance, upon first laying eyes on Maverick […]

MIKE SELF
May 14, 2026

Broke-Down Life

My Broke-Down Life As I limped my truck home at night with no headlights (and towing a trailer), I wondered how exactly does a person […]

Jason Sands
September 14, 2023

Cummins Cooling Mods

Keeping EGT and Coolant Temps in Check in A Modified 6.7L Cummins With 800 lb-ft of torque or more on tap and a stack of […]

Mike McGlothlin
April 05, 2020

Diesel Enthusiasts Assemble: Inside Diesel World

Show season each year is an exciting and extremely busy time for diesel enthusiasts. Just about every weekend, for 3-4 months straight, I’m on the […]

DW STAFF
February 22, 2016
3 minutes read

The 177mph 1,400-HP Duramax Rocket

If you’ve ever looked at a full-size diesel truck flying down a dragstrip and thought “I wonder what that engine would do in something lighter,” […]

Jason Sands
September 05, 2017
8 minutes read

International Harvester 656: Evolution of a Farm Workhorse with Hydrostatic Innovation

Most farms have a utility tractor around. It usually mounts a hydraulic loader but may also be used with other powered implements. The utility will […]

Jim Allen
May 28, 2025
24 minutes read

Fordahl Bilt’s 7.3-Powered Highboy: A Unique Blend of Classic and Modern Power

Fordahl Bilt’s 7.3-Powered Bumpside F-250 In a scene where there is such a definitive line drawn in the dirt that divides lowered and lifted trucks, […]

JOHN MATA JR
October 07, 2024
6 minutes read

We value your privacy

We use cookies to enhance your browsing experience, serve personalized ads or content, and analyze our traffic. By clicking "Accept All", you consent to our use of cookies. Visit our Cookie Policy for more info.

Don’t Get Locked Out!

Don’t Get Locked Out!

Report Issue