Supra Liftback L6-2997cc 3.0L DOHC MFI Twin-Turbo (1997)
EGR Valve: Testing and Inspection
EGR VALVE INSPECTION
1. REMOVE EGR PIPE
(a) Loosen the union nut of the EGR pipe.
(b) Remove the 2 bolts, EGR pipe and gasket.
2. REMOVE EGR GAS TEMPERATURE SENSOR
3. REMOVE EGR VALVE
(a) Disconnect these hoses from the EGR valve:
(1) Vacuum hose
(2) Pressure hose
(b) Remove the 2 nuts, EGR valve and gasket.
4. INSPECT EGR VALVE
Check for sticking and heavy carbon deposits.
If a problem is found, replace the EGR valve.
5. REINSTALL EGR VALVE
(a) Place a new gasket on the air intake chamber.
(b) Install the EGR valve with the 2 nuts.
Torque: 21 N.m (210 kgf.cm, 15 ft.lbf)
(c) Reconnect these hoses to the EGR valve:
