ok well today the mechanic i took the car too tested the car and he told me that the lambda came up faulty but than he changed the lambda for another one and went to check the emissions and co was still high.He than disconnected the air filter only just after the maf and the car went crazy.It started to act up on him for example when he grabbed the maf and move it around still connected the co either went too high or dropped a bit .He is thinking the maf is going bad.Any ideas now ?