How do you know if a used tdi has a tune?

I bought a '04 Beetle TDI w/DSG last year. I have had several people ride with me and can't believe the power the little car has. If I turn the traction control off when the road is wet , it will spin all the way up to 3rd gear.I have rode in other Beetles and they don't go like mine. It now has 162k miles and a new trany that I had to put in when I bought it. Does vagcom have a way of displaying if the ecm has a tune on it?

Depends. Sometimes the tuner puts in a "signature" which shows up right on the opening log-in page. If not, sometimes you can monitor intake pressure or fuel injection quantity and see if they correspond with known stock values under known operating conditions.

Or you can put it on a dyno and see what it does.

Or ... just drive it and enjoy it, whatever it might be.

Definitely enjoy driving it. It's like driving a go cart that is street legal. I'm addicted.

Full version of vagcom and read torque from group 100 or something I think.

Edit:

Is group 120

You have no idea of the car's history I gather? Short of that, the friends who rode with you, have they been in a TDI before?

Kinda easiest way... get someone who's driven a few and see what THEY say. If you haven't driven one before, you won't "know".

The traction control.. my advice on that: Leave it on, I only turned it off in HEAVY snowfalls. This is when you want wheel spin to shed the snow out of the tires. Spinning the front end(on dry roads) is really hard on the car.. abuse your car, abuse your wallet! Maybe better tires would be in order hehehe ... Just saying...

Either or, have fun driving it and don't neglect it!

Recently read a quote that'll stick with me for a long time... "A vw is not an appliance."

Also, if the "other Beetles" that you rode in were stock ALH cars (2003 and before), you have a P-D engine that has more power right out of the box than the earlier ones.

Just read it's an 04, will Torque work with it? The readers are £$5/7 on ebay and the app only a few £$ and it'll give you power readings that won't be RR specific but will put you in the ball park for knowing where you are at.

I used an App called Engine HP something or other that worked really well until it got pulled from the Amazon app store.

Torque will work fine, just look at your boost levels, you'll figure it out soon enough.

Yup. Boost is where you'll find your answer. Requested specifically, actual might not track well enough to say for sure.

Group 11 logs requested and specified boost. Deduct atmos, compare to stock boost.

If you requested boost is over 2000 then you car has a tune in it.

Yeah, requested boost will tell you.

I would probably be best to avoid spinning your wheels. The diff does not live long with that from what I have read.

might have bigger injectors.

Very unlikely, PD injectors are not worth upgrading until ~160hp