nt

a

The tiptronic transmission will learn and adapt to your driving style over time (so I've read). I'm not sure how you would reset the tip trans back to the default "factory" settings, but it's probably not controlled by the engine ECU. I know the tip trans has a "ECU" box of it's own and there's probably some resetting procedure.

Anyway, but if you've got an aftermarket chip (and I would think this would apply to the OEM Audi chip also) it's possible that it has "maladapted" over time due to a number of factors. IMO, the biggest factor would be how good the chip-tuning is. Other factors might include quality of the gas you use, type of driving you do (stop-and-go versus highway). I would think that all of these items could cause the ECU to make changes to the short-term "memory".

By "resetting the ECU", you basically erase all these changes that were made to the flash memory and the engine uses the values programmed into the chip instead of the short-term memory "tweaks".

Hope this made sense and sorry if I got part of it incorrect...this is my understanding of maladaptation.

<A HREF="Mailto:andy_hedin@hotmail.com">Andy Hedin</A>
'97 A4 1.8Tqms, Garrett 1.0 Bar, ABT Filter, APR/Borla Exhaust, Euro Headlights, more...

This would kind of depend on a few things. Some chips might be worse than others and thus you might want to reset the ECU every month or so. Otherwise, resetting it maybe once every few months might be enough.

It doesn't take very long to do, so it's not really too big a deal to do it every month or so if you suspect that it needs it.

Andy Hedin

speaking with Todd at AWE, he did tel lme that many chips will tend to maladapt, which will make the car feel sluggish and slower over time. Main source of the problem is the quality of the programming that went into the chip. If a chip was coded correctly, he said that a chip should not maladapt. If your car feels sluggish over time, try resetting the ecu. Just be aware that this will only become a temporary fix, and will likely need to be repeated frequently.

Chris K
98.5 1.8TQTS Garrette

Guys:
I think I saw that ANdy Hedin had some input from AWE that the correct reset procedure is to unplug, then start the engine and let it idle for a few minutes. This is different from previously discussed procedure of leaving the key in ON position for a few minutes. Anyone know which way really resets the ECU

Thanks

SuperG
1.8tqms