I have been looking up piston ring problems,
My idle isn't how it should be but this could be maf sensor or o2 as i do have light on.
I have no blue smoke or smoke at all got a mate to watch exhaust as i reved it
The car has failed emmisions on the last mot but this was b4 i owned it and i can only guess they slipped it thought it lol
I don't think it has any lose of power.
But it has two of the symptoms of blown piston rings so i guess it would make sense. Thanks for every1's input