All About The 16V 4AGE ECU
sample text
- Toyota / 4A-GE
- Car page
4AGE BIGPORT ECU PINOUT

|
E01 |
Engine Ground |
Engine Ground (Same as „E02“) |
|
E02 |
Engine Ground |
Engine Ground (Same as „E01“) |
|
#10 |
Injector 1 & 4 Signal |
Injector Signal (Same as „#20“) |
|
#20 |
Injector 2 & 3 Signal |
Injector Signal (Same as „#10“) |
|
STA |
Starter Signal |
Starter Signal While Cranking |
|
IGT |
Ignition Signal to Igniter |
Logic Signal To Igniter Module |
|
MCHK* |
V-MAX |
Unused (Speed Limiter) |
|
E1 |
Engine Ground |
Engine Ground |
|
NSW* |
Neutral Start Switch |
Unused (Automatic Transmission Neutral Switch) |
|
BF |
Injector B+ |
Injector Positive (Is NOT The Power Source!) |
|
VISC* |
Idle Up |
Unused |
|
VSV1 |
T-VIS |
T-VIS Solenoid |
|
OX* |
Oxygen Sensor |
Unused (Oxygen Sensor) |
|
VF* |
Oxygen Sensor Check Connector |
Unused (Oxygen Sensor Check Connector) ?? |
|
G- |
RPM Sensor |
RPM Sensor „Ground“ |
|
E21 |
Sensor Ground |
Sensor Ground |
|
G1 |
RPM Sensor |
RPM Sensor (4 or 1 Tooth) |
|
NE |
RPM Sensor |
RPM Sensor (Toothless) |
|
IGF |
Igniter Check Signal |
Signal From Igniter Module |
|
- |
- |
Unused |
|
T |
Engine Check Connector |
Connect To Ground To Check Error Codes/Set Timing |
|
IDL |
TPS Idle Switch |
TPS Idle Switch |
|
THA |
IAT Sensor |
Intake Air Temperature Sensor |
|
VC |
Sensor Power Supply |
+5V Sensor Power Supply |
|
PIM |
MAP Sensor |
Manifold Air Pressure Sensor |
|
VTH |
TPS Sensor |
Throttle Position Sensor |
|
THW |
CLT Sensor |
Coolant Temperature Sensor |
|
E2 |
Sensor Ground |
Sensor Ground |
|
L1* |
ECT Computer |
Unused |
|
VAF (L2) |
Variable Resistor |
Co2 Potentiometer |
|
L3* |
ECT Computer |
Unused |
|
FS |
EFI Injector Relay |
EFI Injector Relay („Fail Safe Relay *2“) |
|
ECT* |
ECT Computer |
Unused |
|
SPD |
Wheel Speed |
Wheel Speed Sensor (Inside Speedometer) |
|
FC |
EFI Circuit Opening Relay |
EFI Circuit Opening Relay |
|
A/C* |
A/C Amplifier |
Signal From A/C Amplifier |
|
CCO* |
Check Connector Output |
Unused |
|
EGW* |
Exhaust Temperature Warning |
Unused (Exhaust Temp Warning Light) |
|
BATT |
+30 Battery |
Always Connected To Battery Positive |
|
W |
Check Engine Light (C.E.L.) |
Check Engine Light |
|
+B1 |
Main Relay +15 |
Main EFI +15 Relay (Same as „+B“) |
|
+B |
Main Relay +15 |
Main EFI +15 Relay (Same as „+B1“) |
ECU Differences -More will be added later
| 89661- | 12051 | 12060 | 12150 | 17140 |
| 175700- | 0182 | 0053 | 0390 | 1042 |
| Sticker | ||||
| Country | JAP | EU | JAP | US |
| Car | AE86 | AE86 | AE86 | AW11 |
| Z/K | Zenki | Zenki | ||
| Head | Bigport | |||
| KW | 96kW | 91kW | ||
| Max RPM | 8,200 | |||
| Injectors | Low-Z |