Warranty Work - Ford Powerstroke Diesel Forum
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post #1 of 6 Old 06-28-2012, 01:47 PM Thread Starter
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Warranty Work

I currently have a dpf delete, cai, and mini maxx tuner. If I put my truck back to stock would the dealer be able to tell I had the dpf deleted? If so, how would they be able to tell? I do not need any warranty work but I was really curious. Thanks

Mini/DPF/DOC/S&B/37" Open Country's/6" Lift



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post #2 of 6 Old 06-28-2012, 01:54 PM
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lot's of guys here do just that, supposedly the H&S and spartan are undetectable on the PCM. you might want to clean the soot out of your tailpipe though.

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post #3 of 6 Old 06-28-2012, 01:59 PM
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There are quite a few threads on this, and it really boils down to how deep a warranty inspector wants to go. The evidence will be there if they are looking for it, both electronically (I doubt any tuner can be completely undetectable), and mechanically (Core thing here is the motor oil being thinned with fuel during regens, and the lack of exhaust buildup in the DPF filter) .
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post #4 of 6 Old 06-29-2012, 07:58 AM Thread Starter
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Quote:
Originally Posted by countryraised View Post
lot's of guys here do just that, supposedly the H&S and spartan are undetectable on the PCM. you might want to clean the soot out of your tailpipe though.
Thats pretty cool, can anyone confirm this? "supposedly the H&S and spartan are undetectable on the PCM".

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post #5 of 6 Old 07-01-2012, 11:10 PM
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been running this way for years , truck goes stock completely go get a smog then at the same time trip to dealer stock.\ spartan since 4k now have 52k
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post #6 of 6 Old 07-02-2012, 12:55 AM
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I heard if they do a headstud job that they look at the spray pattern on the piston to see if there was a tuner on it.

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