Originally Posted by
James @ M Developments
air leak will cause all sorts of idle issues,
increasing fuel pressure will mask the fault as it will run rich, just like it does on cold start when you say it is ok.
pressure test the inlet from the turbo up.
ok thanks, i will test it asap, it was fine b4 i rebuilt the head so its got to be something i touched!!! also it does hold back and wont accellerate properly when it plays up?? almost a missfire!! but not if you know what i mean??
