Resetting Throttle Adaptions

[GS Bloke]

I was on the phone with a very helpful chap from a BMW dealership today talking about exhaust mods, and he said that the 'Throttle adoptions' (I'm sure that's what he said anyways), need to be reset when after market headers and/or tail pipe has been fitted as the computer needs to re-learn stuff, and "it makes a big difference to the power" he said.

Anyone done this, did it make a big difference?

Quoted 1/2 work in the shop, £30 + vat.

 

[Jonnie Boy]

If your getting a service done they'll plug the magic box in to balance the throttle bodies.

Would'nt this 'reset' everything as the electronics have to 're-learn' after fiddling with the valve clearances, air filters, plugs ?

Why pay extra if they gonna do it during a service anyhoo?

Jus a thought.

 

[Pukmeister]

Adaptive values in vehicle ecu's are exactly that, eg 'values' held in memory that can be changed or 'adapted' by software. Some adaptive values can adjust by themselves based upon the output from various logic processors depending on comparing inputs with known paramenters.

I didn't realise the BMW ECU could be reprogrammed to suit different exhausts etc. I thought the stock fuel/ignition map was 'one size fits all' which is why there is a market for Techlusion and Power Commander units.

 

[Jonnie Boy]

I were under the impression that the fueling/ign/ecu techno stuff would adapt to the new pipe all by itself too.

With the can on and valve clearances set n all balanced up should run fine.

Mines run fine with a 'can' for 37k now with no 'special workshop (extra cash) setup'

As have many others I expect

 

[GS Bloke]

Just got back from my local BM dealer and had a chat with a mate who is a mechanic there, and he said there is no such thing as 'throttle adaptions' that can be modified on a 1200 GSA, nor is there a secondary cat in the std tail pipe, as I was told by the same person.