ClioSport.net

Register a free account today to become a member!
Once signed in, you'll be able to participate on this site by adding your own topics and posts, as well as connect with other members through your own private inbox!

  • When you purchase through links on our site, we may earn an affiliate commission. Read more here.

Williams ECU





Does anyone know if the Williams 2 and Williams 3 ECU is the same/different? Can a Williams 2 ECU be put an a Williams 3 and vica-versa?

Thanks.
 
  FRST and 106 GTi


I think that there is only on ecu for all williams...
Try comparing its part-number

willy ecu:
S101 262 107 HOM7700 864 272
 
  172 cup,s2 rs turbo


if your swapping ecus off a car with an immobiliser then it wont work unless you can get the old immobiliser code out of the ecu.
 
  williams and trophy


and dont forget the willy 3 has abs too (sacriledge)...dunno if it will make a dif runnin an ecu equipped for abs on a car that hasnt got it or not.but i know u cant do it the other way round, i.e non abs ecu on a car with abs
 
  172 cup,s2 rs turbo


on older vehicles the abs isnt linked to the injection so it shouldnt be a problem.
 
  172 cup,s2 rs turbo


if its got a renault immobiliser you will need the decoder and the plip keys as well as the ecu off the doner car.
 


I didnt think Williams did tho.. thought they had the aftermarket Cobra? Which no one uses cus its terrible, heh.
 
  williams and trophy


so how come wen craggy n rhys swapped ecus ....craggys willy 2 non abs an rhys willy 3 with abs rhys engine wunt run properly??
 
  williams and trophy


so am i now lol

iv swapped willy 2 chipped with std willy2 ecu n it worked fine..same chipped ecu on rhys willy 3 wouldnt work, apparently because of the abs.......
 
  Trophy


Would just like to point out that ALL Williams ecus are the same and will work on any of the series.
ABS doesnt make a difference.



Mat.
 
  williamsclio.co.uk/forum


The ABS has its own ECU to control the brakes.....But might be tied in electronically somewhere.

The alarms on all Williams were aftermarket standalone units, and not tied into the ECU.
 


I think Daz found out that the Willy 3 ECU was infact different to the others...dunno if it was because of the ABS or not???

Maybe the abs sensor is connected to ECU someother way, and the 1 and 2 ECU wasnt design to do that...

Then again I could be talking bare crap???
 


Top