Quick question on new (to me) truck

[Rhys05]

Hey guys, I'm sure that this has been asked before, but I'm not even sure what to search for that would give me the answer I'm looking for, so here goes!

Just bought a 2006 F250 powerstroke, and I don't know if it has the stock "tune" or an aftermarket one. Is there any way (short of taking it to a dealership or buying my own SCT Tuner) for me to be able to determine if it has an aftermarket tune? I have a ScanGauge, but that is my only method of reading the OBDII messages at this time..

My guess is no (to being able to tell), but I figured that the only dumb question is the one left unasked! Thanks guys!

[scottharmon]

did you buy the truck from a dealership

[Rhys05]

Yep, but long story short, I don't trust that dealership to touch my truck at this point due to a post-sale issue that they failed to resolve (fixed it myself, but they should have fixed it for me since I had just purchased the vehicle a week before, but that is neither here nor there). I do suspect that it might have an aftermarket tune because during the course of them NOT addressing the above mentioned issue (and after they had run diagnostics) they asked me if I had put "the aftermarket tuner" on it. I don't know if they can tell that it has been tuned if it is returned to stock. It is possible that they thought my ScanGauge was a tuner and were referring to that, I'm not sure.

Edited to add: but in the "maybe not tuned" category goes the fact that the speedo isn't corrected for the 35" tires that are on it, and I would think that if it were tuned they would have corrected that!

[scottharmon]

well why i ask is that dealership are not allowed to sell trucks not running a stock tune...but if its a shaddy place they might not care to take it off and they might have asked you if you tuned to say it voided the warranty or some bs reason to get you to pay more.

[Rhys05]

Well, it is a big Ford dealership, but I'm not impressed with their pre-sales inspection so it wouldn't surprise me in the least.

[dhanna6powerstroke]

I doubt that it's tuned. Most dealerships check for any PCM updates when they inspect it before going onto the lot and, if there are any they will reprogram it which would wipe out any tunes.

[Evil Eye]

I would tend to agree that it isn't likely tuned.

[Rhys05]

Originally Posted by dhanna6powerstroke

I doubt that it's tuned. Most dealerships check for any PCM updates when they inspect it before going onto the lot and, if there are any they will reprogram it which would wipe out any tunes.

Yeah, this is my default assumption as well. Its just that comment from the service department, coupled with the fact that now that that issue has been resolved (bad FICM and batteries), the truck feels much more peppy than I would have expected from a 100% stock 7800 lb truck! Buut..as to the original question, IS there any way to tell?

[dhanna6powerstroke]

Originally Posted by Rhys05

Yeah, this is my default assumption as well. Its just that comment from the service department, coupled with the fact that now that that issue has been resolved (bad FICM and batteries), the truck feels much more peppy than I would have expected from a 100% stock 7800 lb truck! Buut..as to the original question, IS there any way to tell?

A bad FICM will make one sluggish and a good FICM makes a big difference.

[gonehuntn87]

if it has a p1000 in it, its probally got a chip in it