How to tell if I'm chipped..

[Dudenhymer]

Hello all, new to the forum and to Turbo Diesels. Just bought an 03 F250 with the 7.3. Love the truck so far. Bought it from a used car lot so not really sure what all has been done to it. Looks like it has a 4" Flowmaster exhaust from the turbo back. Also has a relatively small airbox with a green filter. I'm assuming that's an aftermarket intake. Is there an easy way to tell if the truck has any kind of aftermarket tuning or a chip?? Also does anyone have an idea what kind of intake I might have? How good is the Flowmaster exhaust? I love the way it sounds...

Thank you..

[JSchuricht]

Two simple things that I can think of to check for a chip without pulling the ECU. If you have a overhead console display (lie-o-meter) that says 20+MPG, you have a chip. If you are stopped and put your foot to the floor and can feel the truck accelerate vs just making a lot of noise, you have a chip.

[southern7.3]

Does it smoke a lot? Does it whoop up on other stock diesels?

[Dudenhymer]

It does smoke some but not alot. How would I be able to tell by pulling the ECU??

[orng1]

Where are you located, I have the stock tune on my DP tuner so you can switch back and forth. It's a huge difference. The flowmasters are not designed for diesels, on a diesel or even any turbo engine you want as free flowing an exhaust as possible when going for power. If you are local I'll let you drive my truck in stock and then switch it over to a tune so you can see what a huge difference it is.

[Dudenhymer]

How could the flowmaster exhaust be bad? Its all 4" piping with one muffler, thats it.. Sound pretty free flowing to me.

[Raul@Stealth Automotive]

if you pull your PCM you should be able to see a chip inserted in it....

[Dudenhymer]

Sorry for the ignorance, new to the trucks/forum. Where might I find the PCM?

Thx.

[choupique108]

its by the e brake on the fire wall.

[trucktractorman]

Reset your mpg computer while driving at 55 mph. If it goes way up above 20 or 25 then you gotta chip.