Which files?

[2014 SilverSport]

Anyone know exactly which files in the PCM are changed with a tuner?  Will all traces of a tune be wiped out when I remove said tune?  I have a lease and want to show no traces of it ever having a tuner on it when I turn in the vehicle..

 

[SoCalSHO]

Don't think it is possible. It just looks like something happened with the PCM, like disconnecting the battery. I don't believe they will check if you turn it in off lease.

 

[2014 SilverSport]

Hmmm..  Ok. Thanks

 

[2014 SilverSport]

I may be able to flash it at work.  Would like to know the extensions of the files...

 

[bigmoneycloser]

If they look they can tell the truck was flashed with something non factory.
You can't hide the fact that it was flashed from dealer.
Just don't give them a reason to look.

 

[2014 SilverSport]

If they look they can tell the truck was flashed with something non factory.
You can't hide the fact that it was flashed from dealer.
Just don't give them a reason to look.

I hear ya

 

[bigmoneycloser]

Even when you return it to stock, they can see exactly what was done. If not at dealership at ford direct.

 

[SoCalSHO]

If you are that worried about it, then I wouldn't do it. But I would just do it anyways.

 

[DJE624]

^  What he said.  Once you have a tune, stock will feel slow.  I thought it was worth the risk as did most of the guys here.

 

[EcoBrick Bob]

Ford can only tell how many times it was flashed, or how many times the battery was disconnected, not what was done, if stock tune is currently in vehicle.  They can also tell how many key turns (starts) that have occurred since last flash.

If you change tunes frequently, and or return to stock frequently, that is all they can see (that it was flashed lots of times)  If you have major repair costs due to parts failure, they will use that record to disallow your claim.  Otherwise you are good to go.

 

[QwikEVO]

You borrowed a vehicle.  I wouldn't mod it.

 

[SoCalSHO]

BTW, on the SCT tuner, they are .CEF files.