HI I'm wondering if some 1 here can help,I have a 2008 2.0 rx it seems to have a slight missfire around 2-3000 rpm, the car only has 50000 miles on. I'm going to try plugs hopefully this weekend but I don't want to start throwing loads of other parts at it when it might be something some 1 on here will know about. Thanks

 

It can really only be plugs or coil packs.