need help car is running lumpy idles up and town its worse when cold but not much better when warm and has a misfyre also there is a wyning sound behind head light and stays on for about 30 seconds after car is switched off

paul, February 2010

check basics,good spark plugs and good spark,is the air filter clean(run engine for a minute without filter see if it improves any,always refit it)check the pipe work and hoses for the fuel system is secure and has no air leaks.check inlet manifold etc has no air leaks.fuel filter,fuel pump,low compression are also possibilities.

xs11, February 2010