Diagram Information and Instructions

EFI RELAY
5 - 3 : Closed with ignition SW at ON or ST position

C6 CIRCUIT OPENING RELAY
5 - 3 : Closed with starter running or ignition SW at ON or ST position

I6, I7, I8, I9 INJECTOR
1 - 2 : 13.4 - 14.2 Ohms

T1 THROTTLE POSITION SENSOR
2 - 1 : 4 - 9 kOhms

E3 ENGINE COOLANT TEMPERATURE SENSOR
1 - 2 : 10 - 20 kOhms (-20 °C, -4 °F)
: 4 - 7 kOhms (0 °C, 32 °F)
: 2 - 3 kOhms (20 °C, 68 °F)
: 0.9 - 1.3 kOhms (40 °C, 104 °F)
: 0.4 - 0.7 kOhms (60 °C, 140 °F)
: 0.2 - 0.4 kOhms (80 °C, 176 °F)

E5 (A), E6 (B), E7 (C), E8 (D) ENGINE CONTROL MODULE
Voltage at engine control module wiring connectors
+B - E1 : 9 - 14 volts (Ignition SW on)
BATT - E1 : 9 - 14 volts (Always)
VC - E2 : 4.5 - 5.5 volts (Ignition SW on)
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 fully open)
STA - E1 : 6 volts or more (Ignition SW at ST position)
W - E1 : 9 - 14 volts (No trouble and engine running)
THA - E2 : 0.5 - 3.4 volts (Ignition SW on and intake air temperature 20 °C, 68 °F)
THW - E2 : 0.2 - 1.0 volts (Ignition SW on and coolant temperature 80 °C, 176 °F)
SP1 - E1 : Pulse generation with vehicle moving
STP - E1 : 7.5 - 14 Volts (Stop light SW on)

RESISTANCE AT ECU WIRING CONNECTOR
(Disconnect wiring connector)
VTA - E2 : 3.3 - 10 kOhms (Throttle valve fully open)
: 0.2 - 0.8 Ohms (Throttle valve fully closed)
THA - E2 : 2 - 3 kOhms (Intake air temperature 20 °C, 68 °F)
THW - E2 : 0.2 - 0.4 kOhms (Coolant temperature 80 °C, 178 °F)
+B - E1 : 0.2 - 0.4 kOhms
NE+ - E1 : 140 - 180 Ohms