Loosen fuel filler cap to relieve fuel tank pressure. (DO NOT tighten at this time.)
Raise the vehicle to disconnect the fuel pump electrical connector, then lower the vehicle.
Start and run the engine until the residual fuel is consumed. Engage starter for three seconds to assure fuel pressure relief.
Disconnect the negative battery cable, and locate the fuel feed pressure line.
Connect fuel pressure gage, J-29658-B, in between the fuel feed line and the TBI unit. Use the appropriate adapters.
Raise the vehicle to connect the fuel pump electrical connector, then lower the vehicle.
Connect the negative battery terminal.
Perform fuel pressure checks.
Relieve the fuel system pressure. See steps 2 and 3.
Disconnect the negative battery terminal and remove fuel pressure gauge.
Tighten fuel filler cap and connect the negative battery terminal.
Cycle the ignition switch twice, waiting ten seconds between cycles. Check for fuel leaks.