P208d & P20E9

[Andy_dirt]

2015 Ram 2500 with 6.7 and 68rfe. 79,000 miles

The service def system light came on.
codes P208d Reductant Pump Control Circuit High.
P20E9 Reductant Pressure Too High
I cleaned the def injector nozzle, which wasn’t too dirty.
ohms was 13.3.
Cleared code, drove about 30 miles. Service def system light came on with the 150 mile countdown.
My next step, in the next couple days, is to drain def tank and clean and check everything associated with the lines, connections and pump.
I just thought I’d start a topic and try to go over what I find and fix. Have a great day.

 

[Ltngdrvr]

Well, there's a crap load of service bulletins listed in relation to the P208D, https://www.dtcdecode.com/RAM/P208D
And, there's a bunch for the second code too, https://www.dtcdecode.com/RAM/P20E9

Together, I would bet on the pump assembly going south.

Go through the service bulletins, RAM might be on the hook for it.

 

[Blackbrush]

Don't all emissions systems have 100k warranty?

 

[Ltngdrvr]

Don't all emissions systems have 100k warranty?

Nope, 50K on that part.
Plus, it's over 6 years old.

 

[Andy_dirt]

I checked the codes again and another one was added. It's the P20e8. Reductant pressure Low. I drained the DEF tank and removed the def pump. All the connections looked good, no crystal built up on the pump or any hose connections. I didn't take all the lines off and look inside, but from the way the rest of it looked, I don't think I'll waste the time.
As far as the bulletins go, I have had the truck in many times for recalls, rear main seal, and the T05 recall.
Does the dealer automatically update all systems when they have it in there? This is the first problem with the def system.
I know they have flashed the computer a couple of times for varioius recalls. I know I should just take it in to the dealer, but they are three weeks behind and the max care I bought when new expired already. Thanks for the input.

 

[Ltngdrvr]

Dealer is the most expensive place, find a good independent shop.
Probably going to be a bad pump.

 

[Andy_dirt]

Thanks for all the help. I got the DEF pump in today and swapped it out. I started the truck up and within a few minutes the see dealer message with the countdown went away. I then drove the truck and would intermittently stop and turn it off and back on. After I think 4 of those the check engine light turned off. I got home and cleared the p208d code that was stored permanent. I took it to wash her and a highway trip. So far so good. Thanks again.