'99 Malibu 3.1 v6 VIN code 'M'
Vehicle has the usual GM schraeder valve on the fuel rail for pressure
tests, injector cleaning, etc.
Problem on this one is the port is obstructed by a steel pipe going to
the P/S pump. Anybody make a right-angle gauge adapter, or is common
practice just to bend the P/S pipe out of the way on these engines??