VOLTAGES AT ECU WIRING CONNECTORS No. | Terminals | Condition | STD Voltage | See page 1 | BAT — E₁ | — | | FI-32 | +B — E₁ | — | 10 — 14 | FI-33 | IG S/W — E₁ | — | | | M-REL — E₁ | — | | FI-34 2 | IDL — E₂ | Throttle valve open | 4 — 6 | FI-35 | Vc — E₂ | — | 4 — 6 | | VTA — E₂ | IG S/W ON | Throttle valve fully closed | 0.1 — 1.0 | FI-36 | | | Throttle valve fully opened | 4 — 5 | | Vc — E₂ | — | 4 — 6 | FI-37 3 | Vs — E₂ | — | Measuring plate fully closed | 4 — 5 | | | | Measuring plate fully open | 0.02 — 0.08 | FI-38 | | | Idling | 2 — 4 | | | | 3,000 rpm | 2 — 4.0 | 4 | THA — E₂ | IG S/W ON | Intake air temperature 20°C (68°F) | 1 — 2 | FI-38 | THW — E₂ | | Coolant temperature 80°C (176°F) | 0.1 — 0.5 | FI-39 5 | STA — E₁ | — | IG S/W ST position | 6 — 12 | FI-40 6 | No. 10 — E₁ | IG S/W ON | — | 9 — 14 | FI-41 | No. 20 | 7 | IGt — E₁ | — | Cranking or Idling | 0.7 — 1.0 | FI-42 8 | ISC₁ — E₁ | IG S/W ON | — | 9 — 14 | FI-43 | ISC₄ | | 2 — 3 secs, after engine off | 9 — 14 |