The other day,out of no where my ALTEZZE started acting really strange!!!!! It started running really rough and making a strange putt'n noise!!! When its ideling it tickes over lower than normal,at around 5000 or 6000RPM.
Now,I've changed the air filter and cleaned the MAF sensor-the only other thing I can think of is the spark plugs,which might not be the best Please help

if its ticking over at 5000-6000, and thats lower than normal...............

change the plugs...

[quote name='Monster-Mat' post='572293' date='Aug 15 2008, 09:22 PM']if its ticking over at 5000-6000, and thats lower than normal...............

change the plugs...[/quote]

Oh dear,that might be a bit of a type-o what I ment to say was 500 or 600rpm,sorry.