missfire

hi there my 850 has a missfire when it warms up,but only on low revs,has anybody got any ideas what this could be?

What year is it? Is the Check Engine light on? What engine? Turbo?

1995 2.5 20valve there is no engine light on. it does not have a turbo

Has a general tune-up been done yet? I would start with new plugs, wires, cap, and rotor.

will do, thanks for that, i will let you know how i get on

hi thanks for your help,i changed plugs and leads and its back to its normal self again.

Glad to hear it!