4A-GE ECU Pin out
Information to be distilled from here:
http://www.club4ag.com/faq%20and%20tech_pages/ECU%20Japan%20AE86%204A-GE.htm
- Engine will run without sensor connected
| Row | Top | VEMS Connection | Bottom | VEMS Connection |
| 1/7 | +B=+12v Switched | EC36-Pin25 | +B=+12v Switched | EC36-Pin25 |
| 2/7 | Batt=+12 Constant | *W=Check engine light | ||
| 3/7 | *CC0=(Unknown) | *EGW=(Unknown) | ||
| 4/7 | *FC=Fuel Pump | EC36-Pin15 | *A/C=Air Con. Signal | |
| 5/7 | *(NC) | *SPD=Speed Limiter Input | ||
| 6/7 | *(NC) | *FS=Main relay Fail Safe | ||
| 7/7 | *(NC) | *VAF | ||
| 1/9 | THW=CLT Sensor | EC36-Pin14 | E2=Sensor ground | EC36-Pin26 |
| 2/9 | PIM=MAP Sensor | VTH=TPS Wiper | EC36-Pin1 | |
| 3/9 | THA=IAT Sensor | EC36-Pin2 | VC=+5v out | EC36-Pin28 |
| 4/9 | *T=(Unknown) | IDL=Throttle closed switch | ||
| 5/9 | IGF=Ignition confirmed | *(NC) | ||
| 6/9 | G1=Dist. Timing rotor | EC36-Pin13 | NE=Dist. Speed Sensor | EC36-Pin27 |
| 7/9 | G-=Dist. Common | EC36-Pin26 | E21=Sensor Ground | EC36-Pin26 |
| 8/9 | *0X=O2 Sensor | VF=Unknown) | ||
| 9/9 | *(NC) | VSV1=TVIS butterfly | EC36-Pin3 | |
| 1/5 | *(NC) | BF=Power Feed to Injectors | EC36-Pin23 | |
| 2/5 | *MCHK | E1=Ground to block | EC36-Pin5 | |
| 3/5 | STA=Eng. Cranking Signal | IGT=Igniter | ||
| 4/5 | #10=Fuel Injectors | #20=Fuel Injectors | ||
| 5/5 | E01=Ground to block | EC36-Pin32 | E02=Ground to block | EC36-Pin21 |