TSRM/MK2 Supra/Repair Manual
Repair ManualWiring Diagrams
p.015
FI/EFI System16 / 80
p.017
EFI SYSTEM — Troubleshooting — MK2 Supra EFI System, page 16
100%
OK CONTINUED FROM PAGE FI-15 CHECK FUEL PRESSURE (See page FI-45) OK → BAD → 1. Fuel pump (See page FI-44) 2. Fuel filter 3. Fuel pressure regulator (See page FI-52) CHECK INJECTORS (See page FI-53) OK → BAD → Injection condition CHECK EFI ELECTRONIC CIRCUIT USING VOLT/OHMMETER OK → BAD → 1. Wiring connection 2. Power to ECU (1) Fusible link (2) No. 1 and No. 2 main relay 3. Air flow meter 4. Water temp. sensor 5. Injection signal circuit (1) Injector wiring (2) Resistor (3) ECU