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Check Engine P0299 and P0401

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5th Gen HD

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2020 Ram 2500 6.7, 40,000 mileage.
Check engine light came on, checked the codes with Alfa OBD, both codes happened at the sMe time. Any suggested would be greatly appreciated.
I have installed:
Banks monster ram, banks boost tubes, banks CAI, banks pedal monster, G&R rear fuel conversion kit and front block plate, maghytec trans pan, and trans bypass.
 
RE-CHECK your boost tube connections since you replaced them. Those codes point to a boost leak. All the way from the turbo to the Ram horn. If you have one of those turbo vacuum leak testers that'll help.
 
I asked the question on another post and someone said it could be the turbo actuator? Apparently they had the same two codes.
I saw a pressure tester for around $60 with a gauge. Hooks to the inlet side of the turbo and pushes compressed air into the system.
 
5th Gen HD said:
I asked the question on another post and someone said it could be the turbo actuator? Apparently they had the same two codes.
I saw a pressure tester for around $60 with a gauge. Hooks to the inlet side of the turbo and pushes compressed air into the system.
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Keep it simple. Since you've replaced all those parts that affect boost the problem can be there. Those tension clamps have to be super tight. Actuators with low mileage hardly go bad that early and since you didn't have this problem previously I'd start looking at all the tube connections.
 
Wheelz said:
Keep it simple. Since you've replaced all those parts that affect boost the problem can be there. Those tension clamps have to be super tight. Actuators with low mileage hardly go bad that early and since you didn't have this problem previously I'd start looking at all the tube connections.
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Man all the clamps were loose, one clamp was almost 15 turns off. I hope that was the problem. Crazy, im thinking of doubling the locking nut on every clamp.
 
5th Gen HD said:
Man all the clamps were loose, one clamp was almost 15 turns off. I hope that was the problem. Crazy, im thinking of doubling the locking nut on every clamp.
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lol did you install it? how many mountain sodas in were you when you were almost done hahaha.

i know when i did my truck we started around 10am and finished around 5pm and as deep in as i was i still went and checked everything.
 
oledirteh said:
lol did you install it? how many mountain sodas in were you when you were almost done hahaha.

i know when i did my truck we started around 10am and finished around 5pm and as deep in as i was i still went and checked everything.
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Ha, yes, I installed it… I promise they were tight lol. Of course that was today. I slipped off the stepladder and dang near broke my ankle. It’s funny because I have the truck completely tore apart and had to work through it. I started at 8:00 and finished at 8:00pm. Of course I did install everything… monster ram, tubes, CAI, G&R conversion.
 
yea i did everything you did. my buddy helped and he was so scared cause he's not very mechanically inclined. glad you found the problem though! i will say the one bolt that goes down in the monster ram and you have to go in through the heater hole to tighten it i think it was with the long Allen terrified me cause one slip and your pulling everything back apart lol.
 
Well, i take everything back, definitely not the problem. Through the codes again. Its at the dealership now. I guess we will see, ill keep you posted!
 
5th Gen HD said:
Well, i take everything back, definitely not the problem. Through the codes again. Its at the dealership now. I guess we will see, ill keep you posted!
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Did they fix it? codes gone? I just got a p0299. Have had the monster ram intake on for about a month with no problem till this weekend.

Found this one post saying it could be related to having 2 of the sensors hooked up wrong, but when I checked, I am 99% sure mine are fine.
hdrams.com

Grid Heater Banks Monster Ram P0111/P0299

Ok, I have gone down the rabbit hole and need some ideas of what might be going on. I have a mostly stock 2019 Ram 3500 SRW HO 6.7. About a year ago I replaced the engine air filter box with the S & B. No issues from it. Recently I installed the Banks Monster Ram to eliminate any grid heater...
hdrams.com hdrams.com
 
5th Gen HD said:
Well, i take everything back, definitely not the problem. Through the codes again. Its at the dealership now. I guess we will see, ill keep you posted!
Click to expand...
It is unfortunate to hear that you have some concerns about your vehicle. Our team is more than willing to assist in resolving this alongside your dealer. Please send us a private message with your VIN, mileage, and the dealership you're currently working with for further support.

Chris,
Ram Cares
 
5th Gen HD said:
2020 Ram 2500 6.7, 40,000 mileage.
Check engine light came on, checked the codes with Alfa OBD, both codes happened at the sMe time. Any suggested would be greatly appreciated.
I have installed:
Banks monster ram, banks boost tubes, banks CAI, banks pedal monster, G&R rear fuel conversion kit and front block plate, maghytec trans pan, and trans bypass.
Click to expand...
@ProspectorSteve could you reach out to @5th Gen HD and maybe see if you can assist?
(Steve is with Banks)
 
So, I added a monster Ram a month ago and things were fine till last weekend and I got the P0299. Had a fleetguard air filter, but replaced it with a mopar, just in case. Didn't fix the problem. Then I saw the post above about the 2 connectors possibly being mis-connected. I went over them and the instructions, but I am 99% sure mine were fine. Today I took it into the dealership because I had found some TSB's about 2 different software updates that had a P0299 as a symptom. Apparently when they hooked up the witech or whatever the computer is that they use, it didn't show that my truck needed the software flash, so it didn't get that. Then they did a pressure test and found that air was escaping from between the Monster Ram and the EGR valve. I don't know why, the mechanic didn't tighten the 2 bolts on the front of the EGR valve and then retry the pressure test, but when I checked tonight, my front bolts were almost finger tight. So I don't know if I didn't finish tightening them when I was buttoning up the banks shield on top or if they worked themselves loose, but I am hoping that tomorrow, my P0299 is gone. If not, I got some new egr gaskets to put in and will make sure to lock tite those bolts.
 
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