Toyota 4afe Ecu Pinout [better] -

Diagnostic test terminals (used with E1 to read CEL codes). VF1: Oxygen sensor voltage feedback for monitoring. STA: Starter signal (tells ECU engine is cranking). Wiring & Diagnostic Notes Corolla 4AfE 1 6 Ecu Pinout PDF - Scribd

Detects if the throttle is fully closed (idle) or open at a wide angle. Pressure Intake Manifold Intake manifold pressure signal used for load calculation. #10, #20 Injector Pulse Output signals that trigger specific fuel injector groups. Wiring & Connection Reference toyota 4afe ecu pinout