Toyota 1993 MR2 Wiring Diagrams page 61

ENGINE CONTROL (3S–GTE)
SERVICE HINTS
EFI MAIN RELAY
2– 4: CLOSED WITH IGNITION SW AT ON OR ST POSITION
EFI RESISTOR
E 2
4–6 W
2–1, 3, 4, 6:
INJECTOR
I 4, I 5, I 6, I 7
2–4 W
1–2:
FUEL PUMP RESISTOR
F10
APPROX. 0.73 W
1–2:
E 4 EGR GAS TEMP. SENSOR (FOR CALIFORNIA)
69.4–88.5 KW (50°C, 122°F)
1–2:
11.89–14.37 KW (100°C, 212°F)
2.79–3.59 KW (150°C, 302°F)
AIR FLOW METER
A15
200–600 W (MEASURING PLATE CLOSED)
5–6:
20–1000 W (MEASURING PLATE OPEN)
200–400 W
5–4:
5–7: 15 KW (–20°C, 4°F)
4–7 KW (0°C, 32°F)
2–3 KW (20°C, 68°F)
0.9–1.3 KW (40°C, 104°F)
0.4–0.7 KW (60°C, 140°F)
EFI WATER TEMP. SENSOR
E 2
1–2: 7.22 KW (0°C, 32°F)
3.04 KW (20°C, 68°F)
1.41 KW (40°C, 104°F)
0.73 KW (60°C, 140°F)
0.397 KW (80°C, 176°F)
THROTTLE POSITION SENSOR
T 1
3–4: 3.9–7.25 KW WITH CLEARANCE BETWEEN LEVER AND STOP SCREW 0 MM (0 IN.)
2–4: LESS THAN 5.5 KW WITH CLEARANCE BETWEEN LEVER AND STOP SCREW 0.50 MM (0.020 IN.)
$ W WITH 0.7 MM (0.028 IN.)
3–4: 0.96–1.79 KW WITH THROTTLE VALVE FULLY OPEN
4.38–8.13 KW (25°C, 77°F)
1–4:
PCME (ENGINE ECU)
E 4, E 5, E 6
VOLTAGE AT PCME (ECU) CONNECTORS
BATT –E1 : 9–14 VOLTS
+B, +B1–E1 : 9–14 VOLTS (IGNITION SW ON)
IDL –E2 : 9–14 VOLTS (IGNITION SW ON AND THROTTLE VALVE OPEN)
VTA –E2 : 0.3–0.8 VOLTS (IGNITION SW ON AND THROTTLE VALVE FULLY CLOSED)
3.2–4.9 VOLTS (IGNITION SW ON AND THROTTLE VALVE OPEN)
VC –E2 : 4.5–5.5 VOLTS (IGNITION SW ON)
VS –E2 : 3.7–4.3 VOLTS (IGNITION SW ON AND MEASURING PLATE FULLY CLOSED)
0.2–0.5 VOLTS OR LESS (IGNITION SW ON AND MEASURING PLATE FULLY OPEN)
2.0–4.0 VOLTS (IDLING)
1.0–2.0 VOLTS (3000RPM)
THA –E2 : 0.5–3.4 VOLTS (IGNITION SW ON AND INTAKE AIR TEMP. 20°C, (68°F))
THW –E2 : 0.2–1.0 VOLTS (IGNITION SW ON AND COOLANT TEMP. 80°C, (176°F))
STA –E1 : 6–14 VOLTS (CRANKING)
#1, #2, #3, #4 – E01, E02 : 10–14 VOLTS (IGNITION SW ON)
IGT –E1 : 0.8–1.2 VOLTS (CRANKING OR IDLING)
TVIS –E1 : APPROX 2.0 VOLTS OR LESS WITH IGNITION SW ON AND THROTTLE VALVE FULLY CLOSED (REGULAR GASOLINE)
9–14 VOLTS WITH IGNITION SW ON AND THROTTLE VALVE OPEN (REGULAR GASOLINE)
APPROX 2.0 VOLTS OR LESS IDLING (PREMIUM GASOLINE)
9–14 VOLTS WITH 4200 MIN–1 (PREMIUM GASOLINE)
TE1 –E1 : 9–14 VOLTS WITH IGNITION SW ON AND DLC (CHECK CONNECTOR) TE1–E1 NO CONNECT
APPROX 1.0 VOLTS OR LESS WITH IGNITION SW ON AND DLC (CHECK CONNECTOR) TE1–E1 CONNECT
AC –E1 : 9–14 VOLTS WITH IGNITION SW ON A/C SWITCH ON
RSO, RSC –E1 : 9–14 VOLTS (IGNITION SW ON)
PIM –E2 : 2.5–4.5 VOLTS (IGNITION SW ON)
W –E1 : 9–14 VOLTS (NO TROUBLE (CHECK ENGINE WARNING LIGHT OFF) AND ENGINE RUNNING)
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