Check Engine Light....
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More Turbo
Joined: May 2008
Posts: 677
Likes: 118
From: Ontario, Canada
Check Engine Light....
Well, I was driving along through town today when the CEL came on 
. Truck was running fine and nothing seemed to be out of order. I got home this evening and used my neighbors OBD2 scanner to check the code. Turns out it is the P164A code.
We haven't had any snow that may clog the air filter, but I replaced it anyway since it was due for a change and it was a little dirty. We cleared the code with the scan tool and now I wait until I drive to work tomorrow to see if the code returns (my guess is that it will
)
I have read various posts regarding the NOx sensor and so forth. In the event that the code does come back, I have an appt at the dealer on Wed. morning.
Aside from this and some front end components being replaced at the very beginning, I have not had any issues with this truck. It is 1.5 yrs old and has 40,000km on the clock.
. Truck was running fine and nothing seemed to be out of order. I got home this evening and used my neighbors OBD2 scanner to check the code. Turns out it is the P164A code.We haven't had any snow that may clog the air filter, but I replaced it anyway since it was due for a change and it was a little dirty. We cleared the code with the scan tool and now I wait until I drive to work tomorrow to see if the code returns (my guess is that it will
)I have read various posts regarding the NOx sensor and so forth. In the event that the code does come back, I have an appt at the dealer on Wed. morning.
Aside from this and some front end components being replaced at the very beginning, I have not had any issues with this truck. It is 1.5 yrs old and has 40,000km on the clock.
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Joined: Feb 2012
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New guy here and I still smile every time I drive this truck. More so then when I had my Last truck which was a 2007 Chevy Duramax. I have had my 2011 cc lb F-350 for just over a year with 18,000 miles. So far I had my radiator fluid fail at 13000 miles and have thrown two codes. First was a sensor that was just a loose conection and the second was just last week for P164A. Thanks to this form I was able to tell the service tec about NOX sensor which was replaced. I'll see if it does the trick. Loving It...
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Joined: Aug 2003
Posts: 25,479
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From: Isanti, MN
If there was no measurable restriction then your air filter was flowing just as much as it was supposed to. While I'm hoping for the best I'm thinking you will see this light again.
Senior User
Joined: Jul 2010
Posts: 436
Likes: 2
From: Salt Lake City, UT
I had my first CEL about 3 weeks ago. It was the NOx sensor. Dealer had it in and out in about 90 minutes and has been great since.
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Lead Driver
Joined: Nov 2011
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Seems like I get a check engine light every 3 months. Loose vaccum hose, faulty air mass sensor. Last time it was for a NOx sensor...dealer is a 5 hour ride, little nerve racking, driving that far with a engine light on.
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More Turbo
Joined: May 2008
Posts: 677
Likes: 118
From: Ontario, Canada
Why not just use the "cheap" method that's designed for the purpose? You say that your air filter was due for a change but your restriction gauge looked good. This doesn't make sense to me, as the only method to determine if you need a new air filter is that restriction gauge.
If there was no measurable restriction then your air filter was flowing just as much as it was supposed to. While I'm hoping for the best I'm thinking you will see this light again.
If there was no measurable restriction then your air filter was flowing just as much as it was supposed to. While I'm hoping for the best I'm thinking you will see this light again.
The last time I changed the filter, it was definitely dirty and there is no way it was flowing as much air as a new one, but the restriction gauge showed it was flowing just fine (no restriction shown at all) and I didn't have a CEL at that time either. So either the restriction gauge is faulty, or as you mentioned I will be seeing the light again soon...
Placing a vacuum cleaner nozzle on the inside of the restriction gauge should cause it to activate. I think this would be an easy way to test it out myself?
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Joined: Aug 2003
Posts: 25,479
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From: Isanti, MN
If you do try testing your gauge make sure to post results!
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