Thanks guys, CPK was changed, no fault codes recorded even with live testing, have changed the throttle position sensor 3 days ago and so far no problem , keeping my fingers crossed!
I have 2003 Td5 110 165000KMS excellent vehicle Dastek chip. Cracked head replaced 1 year ago. Recently started intermittent episodes of "missing". Not like a single cylinder is misfiring but as if the the ignition was turned on and off in a fraction of a second. May do it once in a day or...