Hey guys, Can someone explain to me the purpose of the vacuum source on top of the fuel pressure regulator. I know we check or set the fuel pressure with the line off and then when you put the vacuum line back on the pressure drops but why, and what purpose does that serve.
what would happen if that vacuum was being somehow interupped during engine operation. Would or could it cause a fault within the FPR.
Thanks
Jeff
what would happen if that vacuum was being somehow interupped during engine operation. Would or could it cause a fault within the FPR.
Thanks
Jeff