Angelos

I got about 21k on my odometer. Suppose I buy a spare chipped ECU and I drive it around a while. If I swap The ECUs for service and put in my stock ECU, will it return to 21k??

And If I do swap ECUs, is there any way for service to know that I was chipped?

TIA

KOpork

a code for power being disconnected from the ECU.

M3iRiSH

Second Q, yes and no
If you want to go undetected, you need to erase a low voltage code thrown if power to the ECU is lost.

Angelos

and can the code be erased with the vag tool?

sparkhill

there is some question as to whether or not any method (even switching ECU's) is a foolproof method of keeping the dealer from finding out that you are chipped.

There was a post a while back suggesting that you drive for at least twenty minutes three times with the stock ECU before going to the dealer. This would imply that there is some stored data somewhere other than the ECU. I have no idea whether or not this is fact or fiction. Besides, what if you were unable to drive the car for some reason such as an accident.

You should certainly clear the codes when switching ECU's as there is always a power loss code thrown from the swap. It is also useful to do a throttle body adaptation. You need a VAG tool for both of these.

Bottom Line: turbos sometimes fail and if the dealer finds out that you are chipped, they will not pay for new ones.

Angelos

Bingo. thanks

Barney Fife

I'm going to ask my buddy at the port about all these issues he was factory trained in Germany.

Angelos

Let us know when you get the answers.

Barney Fife

when changing car batteries to save all settings, wouldn't this keep the code away? I am also going to ask my buddy at work. since we have all the factory tools, He can "DO" all these tests and tell me what happens. since we get the cars first!!!