De-Tuned...now I have issues? - Ford Powerstroke Diesel Forum
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Old 10-01-2012, 04:01 PM
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De-Tuned...now I have issues?

Well I re-installed the DPF and returned the truck to stock today...because it's going to the dealership for the intercooler update and to have the tranny looked at. In 40 miles, the DPF never went into regen, and the truck seems weak. Also...when I was going to walmart just now, the CEL came on and it was a P0401 code...(Exhaust Gas Re-circulation Insufficient). Anyone else had this issue when they returned to stock? I'm thinking the EGR valve is plugged and maybe the DPF is too?

Hopefully the dealership finds this issue and addresses it..
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Old 10-01-2012, 04:25 PM
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Ya your egr valve is stuck that's why it seems weak same thing happened to my truck. It's because you were most likely running a tune that didn't cycle the valve. Not a big deal the dreamer ship will see that and put a new egr valve on.
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Old 10-01-2012, 04:29 PM
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EGR valve is stuck needs service. Still under warranty ? If so let the dealer service it. If not removing and cleaning will fix and clearing codes nobody will know. Search the form for the how to details several with pictures. Another good source Diesel Technician Society
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Old 10-01-2012, 04:31 PM
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Ya it's still under warranty...I only have 50k miles on it. I cleared the code with my H&S and set the truck back to bone stock. I've been lettin it idle in the drive way the past half hour trying to get it to throw the code again or get the valve to cycle...going for a test drive soon. I wish I could just delete the damn thing LOL
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Old 10-01-2012, 04:36 PM
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Just drive it then the code will keep coming back I kept clearing mine and about once a day it would come back
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Old 10-02-2012, 02:19 AM
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Same thing here. Put mine back to stock yesterday for the 2nd radiator leak. Same code. I though all of the H&S tunes cycled the EGR
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Old 10-02-2012, 05:34 AM
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Quote:
Originally Posted by NOBLE View Post
Same thing here. Put mine back to stock yesterday for the 2nd radiator leak. Same code. I though all of the H&S tunes cycled the EGR
Only the "easy" tunes function the EGR.
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Old 10-02-2012, 09:17 AM
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Originally Posted by superduty6.4 View Post
Only the "easy" tunes function the EGR.
Okay, got ya.
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Old 10-02-2012, 01:14 PM
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Well I got the truck back today. My tech cleaned the EGR Valve and changed the intercooler. He said I had a "pool" of water at the bottom of the intercooler, and the updated one isn't considered a "fix" but he hasn't had anyone in the past year and a half come back after having the updated one installed. Of course...the tranny didn't act up at all since I've been de-tuned...makes me think the H&S is bad JuJu
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Old 10-02-2012, 05:55 PM
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Quote:
Originally Posted by f250ghost View Post
Well I got the truck back today. My tech cleaned the EGR Valve and changed the intercooler. He said I had a "pool" of water at the bottom of the intercooler, and the updated one isn't considered a "fix" but he hasn't had anyone in the past year and a half come back after having the updated one installed. Of course...the tranny didn't act up at all since I've been de-tuned...makes me think the H&S is bad JuJu
Yep, my trucks tranny slams sometimes.... Often I should say, maybe 1-2 a week, which is too often for me. Don't think the tuner is going back on. Been driving it on the no power tune(50) for a week now anyway....
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