Any sifu can advice:
Took out battery for a week after horn suddenly go berserk..
After put back the battery, the car engine rpm seems like dropping to below 500 rpm when car going for a complete stop, like stop in...
I'm just wondering if i put the hose from inside cabin directly to intake manifold. Or more on that, install it from Air-Cond hose directly to intake manifold(make one hole, and put an intake hose on...