Warranty and Programer

[Wittcs]

A buddy of mine has a 6.4 and wants better mpg, but does not WANT to void the warranty. The dealer says they can see if you have had a chip or programer on the truck. Can they tell and if not how can he get better mpg. Please no BULLS--T JUST THE FACTS

[Disnitch]

A good tech can tell if you've had a tuner on the truck or not...

[First_Ford]

Originally Posted by Disnitch

A good tech can tell if you've had a tuner on the truck or not...

And a bad Tech will tell you ya had one, whether you did or didn't.


There is always a possibility if you have to take it in. The bigger question is if you wan't to deal with the hassle if something does happen. There only a few good Techs and engineers out there that will get to the root rather than make assumptions,

[08stroker250]

The Spartan tuner is not detectable through the ECM. Basically what it does is saves the what the computer last saw before you tuned the truck and that goes back in when you return the truck to stock. It is a pretty nice feature. The only way to tell if the truck has been tuned with the Spartan would be if they pulled the heads and saw scarring or pitting in the pistons......which is also VERY unlikely. The best thing to do for fuel mileage is a DPF delete and tuner. The best tuner to get is Spartan. If he returns the truck to stock, the dealer will not know a thing......and I say this because I have yet to hear about anyone getting denied after they have returned their truck to stock.

[Dino96]

Originally Posted by 08stroker250

The Spartan tuner is not detectable through the ECM. Basically what it does is saves the what the computer last saw before you tuned the truck and that goes back in when you return the truck to stock. It is a pretty nice feature. The only way to tell if the truck has been tuned with the Spartan would be if they pulled the heads and saw scarring or pitting in the pistons......which is also VERY unlikely. The best thing to do for fuel mileage is a DPF delete and tuner. The best tuner to get is Spartan. If he returns the truck to stock, the dealer will not know a thing......and I say this because I have yet to hear about anyone getting denied after they have returned their truck to stock.

why would there be scarring or pitting in the pistons and why would that tell them it was because of a Spartan?

[as6.4stroke]

The only way a dealer can trace a chip like hypertech, bullydog, or diablo ,is if u take the speed limiter off and they see that u have went faster that the stock speed limit allows.