Difficult to describe my issue. The engine appears to misfire under anything other than very very gentle acceleration. If I apply the gas as you would in normal driving then suddenly all power disappears the engine splutters, the revs increase all be it slowly. Sometimes when you reach higher revs then the engine becomes smooth again and all power returns at the same time. Sometimes the engine is fine through the whole rev range. Most of the time you can pull away gently but not any more than that, when i say gently imagine the speed of a small child on a pushbike for the first time. I have changed the plugs, the leads, the coil pack. I've tried disconnecting the MAF engine is no different whatsoever, tried disconnecting the lambda, this made the engine slightly improve on idle but no change to driving. The idle is smooth except when the AC is on, then it struggles and 'pops', disconnecting lambda stops this.

please help.

also, probably unrelated the heating is always on, the fan speed dial still works but sometimes the temperature one does not, turning the air con on does not make any difference you only get hot air. This promlem only occurs after running the engine to temp, stopping and then restarting (visit to the shops etc)

Edited by jimmy_1990 on 02/06/2011 at 12:03