Observe The Following Precautions When Removing And Installing The Injectors; Install The Injector To The Delivery Pipe And Intake Manifold As Shown In The Illustration; Confirm That There Are No Fuel Leaks After Performing Any Maintenance On The Fuel System - Toyota 22R-E Service Manual

ENGINE – MFI SYSTEM
3. Observe the following precautions when removing
and installing the injectors.
(a) Never reuse the O–ring.
(b) When placing a new O–ring on the injector, take care
not to damage it in any way.
(c) Lubricate the new 0–ring with spindle oil or gasoline
before installing – never use engine, gear or brake oil.
4. Install the injector to the delivery pipe and intake
manifold as shown in the illustration.
5. Confirm that there are no fuel leaks after performing
any maintenance on the fuel system
(a) With engine stopped, turn the ignition switch ON.
(b) Using SST, connect terminals FP and +B of the DLC
1.
SST 09843–18020
(c) When the fuel return hose is pinched, the pressure
within the high pressure line will rise to approx. 392
kPa (4 kgf/cm2, 57 psi). In this state, check to see that
there are no leaks from any part of the fuel system.
NOTICE: Always pinch the hose. Avoid bending the hose
as it may cause the hose to crack.
(d) Turn the ignition switch OFF.
(e) Remove SST
SST 09843–18020
EG2–169