Hi all my petrol 1.8 on a 02 new shape has started to tickover at about 5000 revs and is very nearly stalling, i have changed the egr unit and cleaned the throttle body as i was told it could be these but has made no change to the problem, car drives lovley at higher revs but crappy when on very low , has anyone had simlar problems all ideas are very greatfull, thanks all.