if i see that diagram again ill scream,lol,ive been studying that for the last couple of weeks now,i know it blindfold, the way i see it is that the on off switch supplies a signal to the de ice switch this in turn goes to the pressure switch which then sends it to the ecu pin 21,the w/o t relay relys on this signal to stay closed and keep a/con running,if the a/con is turned off or the de ice switch shuts down due to it being too cold then the signal to ecu is cut which should earth out the w/o/t relay via pin 12 and shut sytem off,the only way of controlling the system is by earthing the w/o/t relay,i assume the ecu senses when there is a w/o/t applied to the car also and earths it out in the same way as well, my chip isnt allowing it to earth out,im going to try another chip which is deffo a/con compatible,although harvey reckons mine is?i could fit another relay and bypass the ecu totally but would prefer it to work as it should now ive come this far

 

harvey insists that its not a chip problem so ive gone for the easy option and fitted a relay and wired it to suit so everything works fine now,although not quite as ford intended the stat works,the pressure switch works,the idle speed works and the fans come on etc so roll on summer thanks for help everyone i now feel like an a/con expert,lol

 

 

good stuff

 

hi, i have a escort mk6/7 gti and i am going to fit the 2.0ltr cams in it i have bin told 2 upgrade or remap the ecu but i cant find anywhere that will remap it because its an old car so i was just wondering if i could get a super chip fitted would that do the same job as getting it remapped and help the cams work to there full protential