3000GT AWD V6-2972cc 3.0L DOHC Turbo 24 Valve (1996)
Throttle Body: Testing and Inspection
California
These checks are to be performed with the engine coolant temperature at 80 - 95°C (176 - 205°F).
EGR VALVE, CONTROL VACUUM CHECK
EGR Vacuum Port Location
1. Disconnect the vacuum hose from the throttle body EGR vacuum fitting and connect a hand vacuum pump to the fitting.
EGR Port Vacuum Curve
2. Start the engine and check to see that, after increasing the engine speed, vacuum raises proportionate to engine speed.
PURGE CONTROL PORT VACUUM CHECK
Purge Hose Vacuum Source
1. Disconnect the vacuum hose from the throttle body purge hose fitting and connect a hand vacuum pump to the fitting.
