The base flange of the inlet manifold contains small air passages that provide air assistance to the fuel injectors. The air is supplied from the upper throttle body through a large vacuum hose that splits into two and connects to each bank at the base flange on the inlet manifold. A small valve on the throttle body controls the flow into the hose. Removal of the electrical plug from the valve makes no difference.
I understand that a small number of other Jag owners have tried to overcome this problem with no success.
have the same problem?
Thursday, March 15th, 2012 AT 1:45 AM