Hi guys recently fitted brand new injectors to my s2 escort rs turbo mfi. Run ok to start obviously needed a set up drove it yesterday came on boost and misfiring badly put new plugs in today idles ok but when I try to rev it, it misfires terribly any ideas or have I got a dud injector if I have is there a way to know which one isn't working properly

 

Update i put one of my old injectors in and was revving ok but can't get it to idle, so changed back to all the old injectors and now it still won't idle, we'll idles a couple of seconds then dies. If I take the air filter off the mfi metering unit and touch the paddle it will idle but when its warm it won't start unless I mess with the paddle

 

I'd get it to a professional tuner who has experience of working on these rs turbos.

 

Yeah that's what im thinking, seen a guy bob dowen rally services gonna ring him tomorrow see if he can have it in