Toyota 4AGZE ECU pinouts (U.S. with AFM and distributor)
This page information provided by Twincharger, from the Toyota MR2 1988 electrical wiring diagram.
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EO2 | E01 | Earth 01, Earth 02 | RSO | RSC | both to ISC valve | IGT | STA | IGniTer, STArter signal and cold-start injector | E1 | EGR | Earth 1, EGR solenoid | SMC | NSW | Supercharger relay, Neutral switch 0r clutch switch |
xxx | #10 | not used, Injectors 1 and 3 | xxx | #20 | not used, injectors 2 and 4 | VF | G- | Check connector, distributor pickup coil | T | G1 | Test pin (check connector), dist. pickup coil | VTA | G2 | throttle position sensor, distributor pickup coil | IDL | NE | Throttle position sensor, distributor pickup coil | HT | VS3 | O2 sensor heater, air bypass valve solenoid | OX | IGF | Oxygen sensor, IGnition Feedback from ignitor | E2 | THW | common for THW THG and AFM, THermistor Water temp |
E22 | R/P | Same as e2, Regular/Premium switch | xxx | VS2 | Not used, supercharger vent solenoid | L3 | L1 | From ECT computer | ECT | L2 | From ECT computer | A/C | TIL | From a/c amplifier,Supercharger light | W | SPD | To check engine Warning light, speed sensor | FPU | ELS1 | Fuel Pressure Up solenoid, stop light switch | KNK | THA | KNocK sensor, THermistor Air temp (in afm) | xxx | VS | not used, AFM wiper | THG | VC | THermistor eGr, AFM supply voltage | B+ | Bat | switched +12v, constant +12v | +B1 | ELS2 | switched +12v, idle up diode |
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