Spec should be 3 bar - 43.5psi, with the vacuum line off. With the line connected, the regulator should decrease by manifold pressure. If its not making this pressure, it can be the regulator, pump or filter issue.
So if its at spec with the line disconnected, re-connect the line with a T-fitting to a vacuum gauge and the engine running. The fuel if the gauge reads 10psi vacuum, the fuel pressure should be 33.5psi. If not, the regulator is bad.
Last edited by apexspeedtech; 03-22-2018 at 03:54 PM. |