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Before I tuned it seemed as is my def stayed in the tank for months. Now def usage is based on miles, driving conditions, load, ect. How many miles has it been since you last filled up?

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Most likely it’s fine. The ecm in these trucks is the same for 2014-18

Hell yeah! Not sure how new ones have a work around but I believe you have to bypass power gate module on 17 and newer ones to be able to access anything

What year is your truck?

Yes. You can also look into android/ pc software called Alfaobd and do it yourself for under 100$

Check over your fuses, grounds for the motor, and wiring from alternator to battery

Check your map sensor on the intake

I found this thread from a few years ago. In my opinion of you replaceced the tank and still have issues I would start chasing ground wires down and check over all electrical connections under and inside the truck. https://www.ecodieselram.com/forum/threads/p203e-code.989/

I wonder if they replaced your intake also. Could be a number of things but if it comes and goes it could be something in the driveline. Does it fluctuate with rpm or only under acceleration? I’d be suspect of soot on turbo vanes throwing it off.

Just delete egr and be done with it.

Clear code with autozone code reader. Maybe a error due to dirty fuel filter. When’s the last time it was replaced?

So I’ve realized I never did an entry to the welcome forum so I would like to announce myself. I’m chris from Virginia. I’m 28 going on 50 lol my occupation is an Hvac installer. I’ve owned my 2014 eco since August 2018 I’ve put 36k on it. I use my ram for a daily driver and after hours to pull...

I’m sorry boss I haven’t heard of this senario. IMO the ignition hit a glitch and didn’t know how to act so it shuts off and required basically a forced start.

Sounds like your ignition system hit a glitch. Did you end up getting it running?

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My square body has a built trans wirh shift kit and 1800 stall, when it shifts between first and second it gets pretty violent when I’m in the upper rpms haha but it’ll break traction when she shifts from 1-2

I believe at one point there was a recall on the turn dial knobs. Not sure why or what issues it fixed. My assumption would be a weak connection with your transmission control module if they couldn’t connect to it

Yeah I bought trans handheld tuner. It’s got a menu for resetting clutch pressures. It helped me a great deal in shifty shifting. It’s not nessasarily the tune your modifying, but the trans your resetting to cooperate with the new shifting parameters. This trans isn’t a kick down cable type of...