P2452 Engine Light - Ford Powerstroke Diesel Forum
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post #1 of 16 Old 05-20-2009, 01:00 PM Thread Starter
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Exclamation P2452 Engine Light

It came on right when the Regen cycle kicked on, seems like everytime i get in my truck the regen cycle kicks on and now its throwing this code.confused:
Any ideas on what is going on?
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post #2 of 16 Old 05-20-2009, 01:07 PM
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Originally Posted by 08FX4RBP View Post
It came on right when the Regen cycle kicked on, seems like everytime i get in my truck the regen cycle kicks on and now its throwing this code.confused:
Any ideas on what is going on?
It is your pressure sensor on the exhaust down by the 3 EGT sensors

-Julian

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post #3 of 16 Old 05-20-2009, 01:09 PM Thread Starter
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what causes this?
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post #4 of 16 Old 05-20-2009, 01:10 PM
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what causes this?
Any number of things, it could be just a bad unit, since you said your truck is going into regen, I'm assuming your truck is stock?

-Julian

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post #5 of 16 Old 05-20-2009, 01:14 PM Thread Starter
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i have just a dpf back exhaust and a CAI
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post #6 of 16 Old 05-20-2009, 01:18 PM
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i have just a dpf back exhaust and a CAI
What CAI are you running?

-Julian

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post #7 of 16 Old 05-20-2009, 01:24 PM Thread Starter
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AFE.....had it on for like 1500 miles and no problem
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post #8 of 16 Old 05-20-2009, 01:30 PM
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Originally Posted by 08FX4RBP View Post
AFE.....had it on for like 1500 miles and no problem
Well that very well maybe your problem. Some trucks it only takes 40 miles, some trucks its 400 miles, but the fact is that in most F250/350 6.4 trucks the AFE will throw a CEL with stock tuning. Most CEL's involve all the regen sensor, like the pressure sensor CEL your truck is throwing. Try this, until your ready to run a DPF delete tuner, put your stock intake on and see if the CEL goes off by itself, I'm betting it will . Now when you get a DPF/regen delete tune you can throw that AFE back with no problem

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post #9 of 16 Old 05-20-2009, 01:32 PM Thread Starter
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so a tune with the dpf on will not do a thing for it? It just seems that dpf is a piece of **** and makes more problems then what its worth.
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post #10 of 16 Old 05-20-2009, 01:36 PM
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so a tune with the dpf on will not do a thing for it? It just seems that dpf is a piece of **** and makes more problems then what its worth.
Don't know about a different tune that still enables regen and the DPF to be used. But if your going to tune the truck and void the warranty, why keep the DPF? If your going to do it, might as well go big and your right about DPF, its way more trouble than its worth

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