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P167F

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P167F - Non-OEM Calibration Detected

 

I thought I heard this DTC was a permanent code but I cannot find any documentation actually stating this. The DTC description in the PCED doesen't state this either. Maybe I missed it or I am hearing things.

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My internets are going backwards it's going so slow,

 

Is it in the MASTER DTC chart? I seem to recall finding it there on another vehicle application, but can't remember offhand WHERE I saw it now.

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I got that one, I didn't get an IN PRINT one, or one to refer to during the test, where it would have been helpful answering the questions regarding the order of the aftertreatment components in the exhaust system on the cab and chassis.

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What pages are the DTC's on? I don't go to class 'til next week, so I don't have the hard copy yet. I've looked through the online version a couple times and don't see any DTC's and so I thought maybe there was a different version on FMC, but they've got the same one up there that we have here....

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I got that one, I didn't get an IN PRINT one, or one to refer to during the test, where it would have been helpful answering the questions regarding the order of the aftertreatment components in the exhaust system on the cab and chassis.

THANKS FOR THE HINT. I'll have to remember that one, when I go to class in May. Just kidding. So was it Dave Young who instructed the course for you?
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DOH! I hate it when I don't remember shit right. The DTC chart isn't in the current book I have posted. I did see the DTC chart in the PCED though.

 

Anybody taking the class this week? Ask if the code is permanent.

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Dave was the instructor and make sure you print off a copy of the coffee table book before you go just in case Ford doesn't have 'em anymore.

 

And BYOC (bring your own coffee).

 

If memory serves me rightly we discussed that code at school, once i get my book dug up here I will see what my notes say.

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I'm in class the 6-8, I'll make myself a note to ask if it's going to stay, as I stated before, they put this code in the programming for the 08 6.4, but removed it from programming for the 09/10 6.4's. be curious to see if they stick to it this time. Maybe they were just experimenting with it on the 6.4?

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I'm in class right now and we don't have the coffee table books either. Instructor doesn't either-just a pdf copy. However he said to make sure everyones mailing address is right in stars because they are supposed to mail all of us a hard copy when they get them all printed. Ill ask about that dtc and let you know.

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I'm in class this week and the instructor does say this is a permanent code. He has no color coffee table book, just a preliminary B&W copy. If anyone is taking the class, take a color print of the book and PDF of the CTB to pass around if you can. The guys in my class were interested in my copy.

 

Posted Image

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Why run the course if we're not prepared. From what our instructor told us, they are shortening this class to 2-1/2 days, and they are going to need to add another driveability based class sometime in the summer to fill in the gaps left by the missing PC/ED, WSM, and other materials.

 

Pay careful attention to the order of aftertreatment components in the book for cab/chassis and wide-frame (pickup). It's on the test.

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Pay careful attention to the order of aftertreatment components in the book for cab/chassis and wide-frame (pickup). It's on the test.

 

 

I'm kind of curious myself, as to what the purpose is, to have two different exhaust and turbo setups on cab & chassis models versus pickups.
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Why run the course if we're not prepared. From what our instructor told us, they are shortening this class to 2-1/2 days, and they are going to need to add another driveability based class sometime in the summer to fill in the gaps left by the missing PC/ED, WSM, and other materials.

 

Pay careful attention to the order of aftertreatment components in the book for cab/chassis and wide-frame (pickup). It's on the test.

 

 

That reminds me about the 6.4 course. When I took it the instructor said there would be a follow-up course at a later date when more problems had shown up to update us on repairs. I guess that wasn't in the budget either. I see they have replaced the CVT tranny classroom course with an online one now. Somehow, I don't think that will do it justice, as that tranny is so different than any other. Posted Image
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If I recall correctly Cetane(I think) told us it was because the emissions requirements are different from the pick-ups to the chassis cabs due to there gvwr. But dont quote me on that I have been reading a lot about the new emissions engines from CAT and AGCO and Ford and things are starting to get a little jumbled together.

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One is chassis cert and the other is dyno cert. They way they are certified is different enough that is necessitates different exhaust systems, calibrations and engine components.

 

Dieselnet.com is a good source of emissions info if any one cares.

 

By the way this is also the reason the heavy 6.2L has a lower HP/TQ rating.

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I didn't fail the test, for the record. I just got the two questions wrong about the order of aftertreatment components.

And thats only because you couldn't read my writing Posted Image

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Above a certain GVW, emissions certification has to be done via engine dynamometer since it is considered a "heavy duty" application.

 

Below that GVW, OEMs have the choice of certifying it as "light duty", which is done via chassis dynamometer.

 

The EPA cycles for the light duty vs heavy duty are very different. The light duty spends more time at lighter loads. That way, The OEMs can calibrate for high power and torque numbers without worrying so much about emissions.

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I would think the two engine variant strategy is for two main reasons: 1. competitors already doing it so why sell more units with the higher power level and incur more warranty risk and 2. The majority of cab n chassis operators are not the owners and less things get trashed if it goes a bit slower when your hired hands are behind the wheel. I bet the fuel economy in real driving is better on the low suds tuned version too.

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