hi the we have a problem with a golf 1.6 azd 2001 its showing a fault code 17961 mainfold sensor/altidude and epc light coming on when reved passed 3000 running rough .I have changed throttle body still the same coil packs.But the cambelt looks a bit loose to me is it possible for this to jump a tooth and still run, the cambelt looks ok but just a tad loose on the front side leading edge towards front car.i just remember reading somthing about this before that the belt and timming putting epc light on any help would be great thanks again