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Discussion Starter #1 (Edited)
My nearest dealer is two hours. When driving home, the check engine light came on "Service DEF, engine will not restart in 175 miles". By the time I got home, I'm was down to "37 miles" left on the warning before the truck will not restart. Here's my question, can I drive the truck back to Albuquerque tomorrow (150 miles) as long as I don't shutoff the engine, or will the engine detune (go into limp mode) after the "37 miles" has lapsed?
 

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My nearest dealer is two hours. When driving home, the check engine light came on "Service DEF, engine will shut down in 175 miles". By the time I got home, I'm was down to "37 miles" left on the warning before the truck will not restart. Here's my question, can I drive the truck back to Albuquerque tomorrow (150 miles) as long as I don't shutoff the engine, or will the engine detune (go into limp mode) after the "37 miles" has lapsed?

BIODIESEL:

GO to this URL, post #5. The truck will shut down. This is the workaround to start the truck and get it to whatever location:

https://www.ram1500diesel.com/forum/ram-1500-diesel-general-discussion/58930-star-case-s1625000005.html

T-Bird
 

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Discussion Starter #6
I'm going to find out tomorrow. We are heading to the dealership tomorrow morning (150 miles). If the truck goes into limp mode, then I'll be calling Roadside Service. Let's hope that I can drive all the way there with no problems.
 

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No it doesn’t go into limp mode when I was having scr problem I went all the way thru count down to truck will not restart still ran normal
 

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Back in the day I experimented with this. I drove well past the mileage indicated for "will not restart." Yup. When I stopped, I made sure it was at the WalMart. Went inside and bought some DEF and came back out to see if the truck would restart. It would not restart. It took a few minutes to restart, though. I guess the float has to move and get things reset.

This particular trip was on the interstate and the truck did NOT go into limp mode.
 

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Discussion Starter #12
No it doesn’t go into limp mode when I was having scr problem I went all the way thru count down to truck will not restart still ran normal
I am happy to report that I had the same experience. The truck went through the countdown and maintained power all the way to the dealership. Once the countdown ended, the screen read, "Engine Will Not Restart, Service DEF System, See Dealer". Every few miles the warning chime went off and flashed the message. It was a little annoying hearing that chime repeat itself over a span of 130 miles, but I was too happy not being in limp mode to care.

The service advisor and shop foreman met me upon arrival. The foreman said they have done approximately 14 AEM updates and mine was the first one to experience the check engine light and P202E code soon after. He said that FCA is being very strict about allowing the shop to make any updates without a phone call. So, he said they will call FCA to see how they want the dealer to proceed.
 

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Discussion Starter #13
Back in the day I experimented with this. I drove well past the mileage indicated for "will not restart." Yup. When I stopped, I made sure it was at the WalMart. Went inside and bought some DEF and came back out to see if the truck would restart. It would not restart. It took a few minutes to restart, though. I guess the float has to move and get things reset.

This particular trip was on the interstate and the truck did NOT go into limp mode.
How did you get the truck to restart? Did you use the crossover wire?
 

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Discussion Starter #16
Funny , if you go down to post # 14 , there is biodiesel himself , asking a question on how to make a jumper
from June 2018 .......
Yeah, I remember when that thread was posted. My problem isn't so much about getting the truck restarted as much as worrying about it going into limp mode. Now that I know I can drive through the mileage countdown, most of my worries have dissipated. ;)
 

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How did you get the truck to restart? Did you use the crossover wire?
I see Ziggy is " offline " right now , he states he got the message because he ran out of DEF ,
not the code you mentioned , after refilling with DEF, the truck did not start normally right away , he had to wait a little
for float to move he believes , then it started with the normal key or button method .
You will not have that luxury , the dealer should know what to do , if not you can show them ,
in another thread a member showed the jumper method to his tech who did not know about it ,
the tech was glad to learn this method..
 

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Yeah, I remember when that thread was posted. My problem isn't so much about getting the truck restarted as much as worrying about it going into limp mode. Now that I know I can drive through the mileage countdown, most of my worries have dissipated. ;)
The Countdown can be triggered by many different problems , with some other problems
it will put you into Limp Mode , your experience just showed that code P202E will not ,
..
it would be nice to have a list in 2 columns , one side codes that will put you in Limp Mode ,
and on the other side a list of the codes that won't , that will take some time to create , with
just one event every few months , .
..
some reported that ,in Limp Mode , if you let go of the gaz pedal , and find the right spot
you can go +/- 50 MPH on the highway , not so bad , as for the hills like you mentioned
they didn't say , I'm sure it would be a challenge .
 

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Discussion Starter #19
The Countdown can be triggered by many different problems , with some other problems
it will put you into Limp Mode , your experience just showed that code P202E will not ,.
That's a very good point. The day I went into limp mode (2 years ago), the truck gave no warning. The warning system chimed with a "Service Electronic Throttle Control" displayed and the truck instantly detuned (went into limp mode).
..
it would be nice to have a list in 2 columns , one side codes that will put you in Limp Mode ,
and on the other side a list of the codes that won't .
Agreed.

some reported that ,in Limp Mode , if you let go of the gaz pedal , and find the right spot
you can go +/- 50 MPH on the highway , not so bad , as for the hills like you mentioned
they didn't say , I'm sure it would be a challenge .
Yeah, I was in the Ozarks when it was in limp mode, so there was no flat area.
 

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Discussion Starter #20
The Ecodiesel needs a new DEF injector; unfortunately, it's on nationwide backorder. The dealer provided us with a rental for at least 10 days. They got us a 2019 Ram HD, crew cab, Big Horn, 2500 Hemi. I can't complain!
 
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