ok, thanks for all the help, much appreciated, yesterday i took the car for a second opinion, a workshop at batu caves, their opinion was that its not the ecu at all, they suggested the crankshaft sensor was sending eratic signals, i bought a new one and went to my friends shop where we fitted it, damn fiddly job i can tell you, and quite a few odd looks at his new mat salleh mechanic LOL........ anyway, so far so good, but, as it was an intermittent fault, i wont know for some time if its fixed, the downside, is my wife has lost confidence in driving the car............. the sensor we removed was showing signs of aging, the once flexible wire was baked hard by engine heat........ i checked the service records, theres no record of it having been ever changed, with the car now at 280k, i guess its time was up.................... next job is flexi plate renewal........im sure theres some teeth damaged on it.