22 f350 27k has code p2270. It has also been stuck in reburn. What would cause this code? Any quick fix as I don’t have time to take it to the dealership for a fix.

came in a couple weeks ago, I reset the code took about 500 miles to come back.

But for the last 6-8 months it’s always been doing a reburn every 150-200 miles it seems. It’s get worse mpg unloaded then my f450 does empty. Best it gets cruising on highway is 16.5. Around town 13-15mpg

 

What is reburn?

 

Looks like a bad O2 sensor, if you want to try replacing it yourself.
Are you still within the 36 month bumper to bumper, or will you be replacing it on your dime?
If still in warranty, I'd get it to the dealer.

 

PCM P2470:00 Exhaust Gas Temperature Sensor Circuit Low (Bank 1 Sensor 4): No Sub Type Information Sets when the PCM detects the exhaust gas temperature bank 1, sensor 4 voltage is less than 0.10 volt for greater than 15 seconds.

The presence of this DTC may indicate the vehicle is operating in derate mode and may experience a loss of power. After repair, the vehicle may still display a system warning message. Drive the vehicle until the system warning message has cleared from the IPC message center.

An EGT14_V PID value less than 0.10 volt indicates a concern.

Possible Sources:
Intake air system restriction
Exhaust system restriction
Exhaust gas temperature sensor circuitry concern
Exhaust gas temperature sensor
PCM

I would try swapping with another sensor and see if the problem follows. P242C would be the same problem for sensor 3 and if it follows then the sensor is bad. If it doesn't follow you would probably need to take it to the dealership to diagnose.

 

Hey bud, you got the code wrong, he said it was P2270 not P2470.
P2270 is the Bank 1 Sensor 2 O2 sensor.

And, now that I look at it again, he has P2470 in the title but P2270 in his description, so now @Kameron Rice needs to clarify.

 

typo on the phone. p2470.

 

still under warranty 3/36. For another 8 months then it will expire.

my 2022 f450 is going in for bad universal joints in the 4x4, it howls terribly coming from the front axle when in 4x4. (Don’t understand because I grease the zeros in the 4x4 every 3-5k miles, it had a new transfer case out in 10k miles ago, and everything inspected. but anyways so need to wait till it complete till I take this one in.


i was just trying to see if there is a correlation with the regeneration from this sensor. It’s will not go out of regeneration. It’s been having issues for a while, probably 6 months like this. Every 200 miles or so it goes into regen and stays for several days. The trucks gets **** poor MPG and I can tell it’s in regen because exhaust is crazy hotter then normal and you hear the pipe cracking from expansion . Exhaust is 3 times or so hotter and puffing a lot harder out the tailpipe when idling. Dealer wouldn’t do anything because it didn’t have codes at the time, this was several months ago. Now I have this code and wondering if it has something to do with a sensor detecting to much back pressure from the DPF and keeps forcing regents to clean out and it’s burnt up a sensor I also. Don’t want to burn up the
DPF either.
When I googled the code p2470 it I saw it was related to EGR sensor, was probably faulty, but I also saw it talking about a sensor at the SCR or the exhaust fluid area but nothing to do with the DPF.

 

regeneration. That’s when the truck injects raw diesel into the diesel particulate filter (dpf), and burns out its soot. It is driven by back pressure sensors to detect the load on how thick the soot level is and can’t breath. Then it burns off the soot.

 

​​​​​​@muisejt has the correct diagnosis path above with the diagram.
I would sure let the dealer deal with it if still under warranty then,
Really need a dealer level scan tool so you can see all the sensor data live.

 

yep, I’ll take it in a couple weeks let them replace.

Once I get it back, I am going to make a decision it’s getting old, go ahead and trade it off, or keep for the long haul and delete it! That will fix its issues. F450 will be replaced at end of the year.

 

For the truck back from the dealer. They replaced a NOX sensor and said it needed the recall for the particulate sensor, so added that. They claimed the truck has not done a proper regen in months and was clogged up, but to me I am orettt sure it was stuck in a regen being how hot the exhaust was and ooor mpg.

when I got the truc today, I started it and it was poring out white smoke consistently. Once I left I drive up the road and it was rolling coal of solid blue and white smoke, but particularly heavy blue smoke. I took it back and they said it’s probably because it was clogged up and is cleaning itself. It continued smoking for another 1 mile or so and stopped.

after 35 miles home it still won’t get better then 13.9mpg cruising at 68mph flat and downhill ground. It should get 19 minion that route. I took my f450 over to get its axle fixed and it got 16.5 mpg going there on that route and it was more uphill.

what would cause the blue smoke?

 

White smoke is water/coolant
Blue is oil
Dark gray/rolling coal is fuel.
If the DPF is very clogged up, it might take quite a while to clear it out.
Take it for a good long(75-100 miles) highway run, may help.

 

that’s what I did, 35 miles so far on highway cruising.

Just hope with the exhaust getting so hot it didn’t hurt that back cylinder.

since it didn’t have that particulate sensor it couldn’t sense an issue, so if I didn’t notice it I could have melted the motor down.