Just playing about with my vcds and i seen that it says (0.0 BTDC) in the engine messuring block! also it says 455.0 mg/str on the mas air flow (actual) But it says it should be between 180.0-300.0 mg/str! Is that right? If so could my maf be playing up? My idle isnt allways smooth! Sometimes it jumps now and then a little! And you can see the rpm needle moving up and down about a mm When idleing!