Have 1999 is 200,vgc, 70,000 genuine miles..when I hit 4000 recs (overtaking ext) when vvti usually comes in,it acts as if rev limiter (6000 recs) is cutting in?!
Have cleaned vvti filter,and solenoid,and carb..still doing.
Thought also maf sensor but told dosnt have one..only map sensor..any ideas?