| E34 miss fire
Hi
I have a 1990 e34 m20 engine. It seems to missfire occasionally but it only seems to do it when the engine is under strain, for example when accelerating hard or when for example you switch into 5th at about 30mph and floor it. It's hard to describe but its like some of the cylinders suddenly are not even fireing and then suddenly they will fire again. any ideas on what it is. Have checked the fuel filter and vaulve clearance. the distributor cap looks a bit old but could this be the problem. if so why does it only do it when the engine is under strain.
Please help
Cheers | 
