xtyper

Does anyone know a definitive way (besides butt dyno) to determine if the dealer flashed your tuned ECU back to stock while in for a service?

soldier2304

Lol trust me you will notice it during acceleration. Specially above 50 MPH it just doesnt feel the same. I noticed it inmediately when my mechanic reflashed back to stock by mistake, sent it back to kleemann and back to normal

justthebest

To answer the question, no, I don't think anyone has come up with a 100% reliable way to confirm tune vs. stock. Maybe the people that program should figure something out along those lines!

Militia

I agree with soldier. The extra power was noticeable at first acceleration, so the loss of power should be as noticeable when you stomp it.

justthebest

Well, seems like people with military-related screen names have more sensitive butts than I. Hahaha - just kidding guys.

LZH

If a dealer did do that, it would say it on the work order. "ECU reprogram of flash" or something of that sort to a "updated version x.xx".

Frank Rizzo

reason #37 why I think "tunes" are a little over rated.

drawde

If you're feeling brave you could try a top speed run to check if you're still delimited.

LZH

_AMG_

Why do you think a tune is overrated?

justthebest

Best response yet.

+1 --> tunes are the simplest, easiest way to put a little more pep in the step, regardless of how you feel about concerns like engine wear, etc.

drawde

I think he was talking about how sometimes people with tunes can't even tell if they're still tuned or back to stock. Fair assumption, under normal driving conditions, very hard or impossible to tell the difference..

LZH

Or for the not so brave a dyno run will tell if it's delimited or not

Frank Rizzo

Yes, this is what I meant.
.

NS_C63

Quick check is to log throttle opening value.

SonnyakaPig

Great point.