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

Installing Smeding Diesel’s S400 Kit On A Fourth-Gen 6.7L Cummins

Right out of the box, the 6.7L Cummins is a potent performer. But while its variable geometry Holset HE351VE provides instant throttle response, promotes huge […]

Mike McGlothlin
November 27, 2023

Latest Automotive Product Innovations for Performance and Durability

Hot Products A Better Allison Merchant Automotive MAximum Transmission Work Series The MAximum Transmission Work Series was designed for hard working Duramax owners and daily […]

DW STAFF
October 12, 2023

2,500hp Super Stock Diesel Puller

A Homebuilt 2,500hp Puller Invades the Super Stock Diesel Class Early on in his motorsports career, Jason Stott knew he was one of those guys […]

Jason Sands
May 20, 2025

BUILDING A MONSTER

A FIRE-RED 5.9L THAT WENT FROM 400HP TO 1,100HP OVERNIGHT When your plan to build an 800hp daily driver balloons into an all-out engine build, […]

Mike McGlothlin
July 14, 2023

OFFICIAL EVENT LIVE STREAM SCHEDULE!

Jun 12

Georgia National Fairgrounds & Agriculture Center 401 Larry Walker Parkway, Perry, GA 31069

Goodguys 26th LMC Truck Southeastern Nationals

Jun 13

Modesto Junior College West Campus 2201 Blue Gum Ave., Modesto, CA

2026 American Graffiti Festival & Car Show

Jun 20

Bishop Diego High School - Football Field 4000 La Colina Rd

Classics With The Cardinals, Santa Barbara’s Premier Car Show

Diesel-Powered Camaro! Dustin Hamm's Unique 1967 Build

Not only is this diesel-powered Camaro one unique ride, it also has quite the story behind it. Owner Dustin Hamm from Sebastopol, California, acquired this […]

Jason Sands
September 17, 2024
7 minutes read

Diesel Engines for New York's First Responders

Moving Towards Danger, Rather Than Away From It America’s first responders are some of the bravest individuals in the world. Most people would rather run […]

DW STAFF
March 09, 2021
5 minutes read

DW Insider

The Power of Core Parts

Don’t Throw Your Money Away! See that junk laying in the corner of the shop? It might not be junk. Good, used (otherwise known as […]

Jason Sands
July 28, 2019
3 minutes read

Ford 6.0L FICM Fix

6.0L Diesel Fuel Injection Control Module Upgrade Ford introduced the 6.0-liter Power Stroke V-8 in 2003, as a new and purportedly better replacement for the […]

Trent Riddle
October 19, 2017
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