| Pin No. | Wire Color (Typical) | Signal Description | Connection / Notes | | :--- | :--- | :--- | :--- | | | Brown | IGF (Ignition Confirm) | To Igniter (Distributor/Coil) | | 2 | – | Not Used | | | 3 | Black/White | CF (Canister Closed Valve) | EVAP Control | | 4 | – | Not Used | | | 5 | Brown/Red | EVP (EGR Valve Position) | EGR Sensor (California models) | | 6 | Yellow/Black | VC (Sensor Power) | +5V Supply to TPS & MAP | | 7 | Blue/Yellow | THA (Intake Air Temp) | IAT Sensor Signal | | 8 | Yellow | VAF (Vane Air Flow) | Only for MAF models | | 9 | Light Green/Red | PIM (Pressure Sensor) | MAP Sensor Signal | | 10 | White | IDL (Idle Switch) | TPS (Closed Throttle Signal) | | 11 | Green/Yellow | VTA (Throttle Position) | TPS Signal (0-5V) | | 12 | – | Not Used | | | 13 | – | Not Used | | | 14 | Red | E1 (Engine Ground) | Critical Ground | | 15 | Red/Green | E2 (Sensor Ground) | Sensor Return Ground | | 16 | Red/White | E21 (Sensor Ground) | Sensor Return Ground | | 17 | – | Not Used | | | 18 | Blue/Red | THW (Engine Coolant Temp) | ECT Sensor Signal | | 19 | White/Blue | OX1 (Oxygen Sensor) | Main O2 Sensor Signal | | 20 | – | Not Used | | | 21 | Black/Red | SP2 (Speed Sensor #2) | From Vehicle Speed Sensor | | 22 | White/Red | ACIS (Acoustic Control) | Intake Air Control Valve (Some models) | | 23 | Blue | NE (Engine RPM) | From Distributor/Crank Angle Sensor | | 24 | Blue | NE (Engine RPM) | From Distributor/Crank Angle Sensor (Shielded) | | 25 | Orange/Blue | KNK (Knock Sensor) | Knock Sensor Signal | | 26 | – | Not Used | | Connector B (16-Pin) - Power/Outputs Pin numbering is usually read Left to Right, Top to Bottom. Pizza Tower V11271 Portable - 3.79.94.248
Here is the deep text details regarding the . Tsutte - Tabetai Gal Sawa-san Chap 16 Raw Manga - Welovemanga
The 4A-FE engine was produced over many years (roughly 1987–2000) across different chassis (Corolla AE92, AE101, AE111, Celica, Geo Prizm). There are two primary ECU types: the older Map Sensor system (common in early AE92) and the newer Mass Air Flow (MAF) system. Additionally, wiring harnesses changed significantly between OBD1 and OBD2.