how do the garages actually remap your ecu to your cars configuration?

1. Narbar Infrequent Poster Joined: Mar 2008 Stafford Posts: 147 Saxo VTR MK2, BMW 318is

   #1 14th April 2008, 18:17

   I always thought that garages actually remapped the ecu to your cars own configuration so would actually need your car. But ive been in contact with two garages and they have mentioned sending my ecu away to be remapped?
   
   Please could someone enlighten me to how this would remap my ecu to my cars configuration if they dont even have my car?
   
   any help would be very appreciated as my car is in great need of a remap and i need this doing
   
   Thanks Dean
2. Gabbastard Saxperience Post Whore Joined: Dec 2002 United Kingdom Posts: 8390

   #2 14th April 2008, 18:33

   if it gets sent away to be remapped, its shite.
3. gd16 Frequent Poster Joined: Nov 2003 Tayside Posts: 893 S/c VT!?

   #3 14th April 2008, 19:18

   As Gabb so bluntly put it - unless they map you're car whilst the ECU is running your engine and they are connected to it - you may as well buy an Ebay resistor.
   
   To map a car properly - you need to be mapping the car whilst its running, either on the road or preferably on rollers. Done any other way and it really isn't getting the best out of your car - resulting in power performance or worse.
4. Narbar Infrequent Poster Joined: Mar 2008 Stafford Posts: 147 Saxo VTR MK2, BMW 318is

   #4 14th April 2008, 22:32

   cheers for the info! does anyone know any decent companies that will do a good job remapping my ecu for a decent price?
5. Dar-Bar_Vtr Infrequent Poster Joined: Dec 2007 Belfast, Northern ireland Posts: 174 august 2003 mrk2 Saxo Vtr

   #5 15th April 2008, 00:33

   i thought most places that remapped, that wer half decent to had a rollin road? to test the car n stuff? place my dad went to did anyway..