Until today.
Signals the angle of the throttle plate. Output Control Pins
: Typically handles auxiliary systems like A/C, speed sensors (SPD), and diagnostic ports (TE1, TE2).
How to Read ECU Pinout Diagrams, Wiring & Connectors - SOULIN
Usually caused by dirty ISC valve, but check pin B5 and B6. With engine warm, AC off, idle should be 750–800 RPM. If surging, back-probe B5/B6: you should see a duty cycle varying from 30% to 70%. If not, the ECU may have damaged ISC drivers.