Toyota Supra 1990 Manual page 258

FI-84 EFI SYSTEM - Fuel System
EM3008 EM3499
FI3459
(~
. 1
_ . .
.~....
_ { . • . = .. -: ' . . ' . '
~ /l
~
. . --:--.-1
'I
1
-- ; / I I
//~
II
FI1669
REMOVAL OF INJECTORS
1. DISCONNECT CABLE FROM NEGATIVE TERMINAL OF
BATTERY
CAUTION: Work must be started after approx. 20 se-
conds or longer from the time the ignition switch is turned
to the "LOCK" position and the negative (-) terminal ca-
ble is disconnected from the battery.
2. DRAIN COOLANT
3. DISCONNECT FOLLOWING HOSES:
• Water hoses from throttle body (7M-GE) or water by-
pass pipe (7M-GTE)
• Vacuum hoses from throttle body
• ISC valve hoses from throttle body
• Vacuum hose from pressure regulator
4. DISCONNECT FOLLOWING CONNECTORS:
• Throttle position sensor connector
• ISC valve connector
• (7M-GE)
Cold start injector connector
5. DISCONNECT ACCELERATOR CONNECTING ROD
6. REMOVE AIR INTAKE CONNECTOR
(7M-GE)
(a) Disconnect the air cleaner hose from the throttle body.
(b) Remove the throttle body and air intake connector
brackets.
(c) Remove the four bolts and two nuts, intake connec-
tor and gasket.
(7M-GTE)
(See steps 1 to 5 on page EM-12)
7. (7M-GTE)
REMOVE THROTTLE BODY
(See step 6 on page FI-102)
8. REMOVE ISC VALVE
(a) Disconnect the No.1 water by-pass hose from the ISC
valve.