19COBRA93
Ford Racing
But is there a way to make it so they cannot detect if it was tuned?
I am planning on taking off the intake and putting about 500 miles on it with stock tune, is this sufficient?
I dont see how they can deny warranty claim on a car that has had a battery disconnect.
Yes they can detect it if they look for it. It depends on what you bring it in for. If you bring it in for a TSB and the car has no other problems and looks stock, they probably won't dig in to the PCM to find if it's been flashed. If you bring it in with a bad motor, they're going to turn your world upside down looking for anything they can find.
If nothing else is wrong with your car, and you return it to stock and drive it for a while, you should be okay. They'll have no reason to dig any further. Don't give them a reason to dig any further.
They can't deny a warranty claim for disconnecting your battery. There's more to it than that. Whatever you bring your car in for, they'll find the cause. If the real cause of the problem was an aftermarket tune, they'll find it. Doesn't matter if you disconnect your battery or not.