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P2074, P132, P246 and sooted intake pic, next steps?
Truck runs great, daily driver, just got back rom 5k mi road trip, flipped 175k mi, mpg has been consistent.
Seems that the cold is causing more codes. Changed out MAP sensor a few mo back. Was checking location of CAC in-hose air temp sensor to try changing that out next. Also looking for hose leaks, while in there I took a peak in the intake, nasty! Should I start with pulling the intake and having cleaned? Thoughts on addressing the codes?
the only way I know to check the ebp sensor is to compare to historical readings at variuos RPMs so you can get an approximate idea if the ebp sensor is kaput. Ill try to find a link to a thread I have with readings at different rpms. all with the vehicle parked.
I ended up having to clean that and the upper and lower intake manifolds so there wasn't anymore carbon. I did that on a 2012 then a 2018.
On the 2018 I did a fuel system, I cleaned the intake manifold on the driver and passenger side ( aka the valve covers), I also took a wire wheel to the intake ports on the heads and they were filthy! Once I got it back together, the owner was shocked at the power and how much better the fuel economy was. I told her that she needed to use a good fuel additive to keep the fuel burning well so carbon doesn't build up as much.
Good info folks, thanks. I am going to play with the forscan app to see what gauges I can pull up to monitor. My EBP tube/sensor is likely sooted bad given the intake condition, so may be a candidate for replacement. I remember doing one on the rusty 7.3L to allow high idle model years back. Will putter on it some over the holidays and keep you guys posted. Merry Christmas!
My EBP on the OEM MAP sensor seems low after doing some more research.
Fritz - How is it to change out the EBP + tube? I got the doorman kit with both. Any videos that you used or it is straight forward? I did one on a 7.3L, but that was easy and in plain sight.
Changes out the EBP sensor. Thanks Fritz, very easy to change, 5/8" and a ~1" wrench, long handle ones recommended. No soot on tube, but I blew it out some anyhow.
Now I am throwing a new P0471:00-64 Exhaust Pressure Sensor code. It was an aftermarket doorman one that I installed.
It also has the same P0274:00-AF and P0274-P
Will put the OEM EBP one back in I guess? I am also thinking to order an OEM MAP sensor, since the aftermarket one doesn't read worth crap (which has been replaced with original OEM MAP for below numbers)
After new EBP went in (and before new codes)., will post those Forescan images shortly. Not much difference though. My issue appears to be outside of MAP and EBP. I am considering changing the intake air temp sensor in the cold air tube. Any other recommendations?
I’m guessing that the P0274 is a typo and it should be P2074 as mentioned in earlier posts?
At this point, you only have 2 codes (P2074 and P0471) correct?
Couple suggestions / things to look at:
ForScan can reset learned values for several sensors and it is recommended to do the reset when the sensors are replaced. Look under the Service tab in ForScan.
The P2074 code can be cause by a number of different things.
Sensors are the usual suspects and the CAC temp sensor is one of them. There was also a post a while back about a failing EGT 11 sensor that caused the P2074 code. As I recall, that is mentioned in the shop manual troubleshooting too.
However, leaks in the intake system can also cause the problem. Have you checked your cold side CAC tube for cracks or signs of leaks? That was the problem I had on my ‘13. Fixed the leak, reset sensor values and all has been good since.
There is a rather lengthy troubleshooting procedure in the shop manual for the P2074 code that I can dig up if you would like. Otherwise, try resetting the sensor values with forscan and see if that helps, maybe it will fix your P0471 if nothing else.
Good input, thanks Bob. Correct, it is a typo and is the same P2074.
I will pull that CAC tube. Have felt around for cracks but nothing obvious, just need to pull it to confirm. I have a new temp sensor to put it as well.
Was not aware of the sensor reset, will check that out in ForScan, very helpful as I was surprised to see the P0471 come up so fast on a new sensor.
With regards to the sensor reset, would the "reset module" with Forscan Lite App work? Or is this a PC only feature? I've only used the app so far.
Sorry, I missed your post over the weekend.
In FORScan Lite for Android, under service tab, PCM section, reset MAF Sensor Adaptation.
There are other sensors that can be reset but if you haven't replaced them, there is probably limited utility. If you touch the info button (circled i) by each one, it gives an explanation for what it does.
A module reboot does not clear adaptation values, it's more like disconnecting the battery cables and forcing the module to reboot.
FORScan on the computer is a great tool to have. For some functions, you will need an extended key, you can get a Free two month trial key or you can buy a 12 month key for $12 I believe. Don't buy the key until you need it, but when you need it, get it. It is well worth having.
Attached are the trouble shooting procedures for P0471 and P2074 for the '13 F250/350.
The P2074 procedure will eventually tell you to reset the MAF adaptation value.
Hope this helps. Let me know if the procedure leads you to a non-included procedure.
I did the "Reset MAF Sensor Adaptation", below, in hopes of recalibrating the exhaust pressure sensor. But received "vehicle conditions" are incorrect, below. Perhaps vehicle needs to be off?
P2074 - I will check harness using pinouts in the pdf. The target MAF_HZ at idle and 2k rpm is also helpful, I will verify. Thanks!
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