can anyone help my cars is misfiring at 5500 rpm have put new ht leads leads plugs dizzy cap full new unit and changed temp sensor, fault still not cured after rolling road setup have been advised to chnage injectors for new ones does anyone else have any ideas ????????????/

 

some one i know had this prob on an es cos,
turned out to be immobiliser cutting the fuel,
if you have one then disconnect it and try, good luck

 

could be mate its has an old alarm still lingering behind the dash

 

try it, might be it

 

When was the last time you put a fuel filter on it?

What boost are you running and what is the base idle CO set to?

 

car had a new fuel filter last week and was set up on the rolling road at well lane yesterday,so co2 and everything is bang on perfect car is fine untill 5500 rpm i will try take this old crap scorpian alarm of and see what happens , have been surgested to that it could be an injector problem