Het product is momenteel niet op voorraad. Vul hieronder uw e-mailadres in en wij informeren u zodra het product beschikbaar is.
Email
Pin B13 (Green/Red) was the —Circuit Opening Relay control. When the ECU sees airflow (via the VAF meter, Pin B8, Yellow/Black), it grounds Pin B13, the fuel pump whirs, and the engine drinks.
| Pin | Wire Color | Function | Why It Matters | |------|------------|-----------|------------------| | A7 | Yellow/Red | IGT (Ignition Timing) | No signal = no spark | | B8 | Yellow/Black | VAF Meter signal | Airflow measurement | | B13 | Green/Red | Fuel Pump Relay Control | No ground = no fuel | | C1 | Red/Blue | TPS (Idle contact) | Bad idle, stalling | | C10 | Brown/Yellow | Engine Coolant Temp | Rich/lean running issues | | D1 | White/Red | +B1 (Main power) | ECU dead | | D3 | Black/Orange | Sensor Ground | Random sensor errors |
The car would start cold, idle for exactly seven minutes, then die like a guillotine blade dropped. No spark, no fuel, no warning. 4s-fe ecu pinout
Marco jumped the diagnostic port. The pump ran fine. But when he plugged the ECU back in? Silence.
He back-probed Pin B13. The ECU wasn't grounding it. He swapped a known-good ECU from his shelf. The pump roared. Dead driver transistor inside the original ECU. Second ghost: a tiny, fried semiconductor. Pin B13 (Green/Red) was the —Circuit Opening Relay control
If your 4S-FE runs badly, always check Pin D3 (ground) first. 90% of the "ECU failed" calls Marco got were just a rusty bolt.
Marco needed a map. He needed the .
Pin D1 (White/Red) – . Main relay power to the ECU. Without it, nothing happens. Marco checked. 12.3V. Good.
Het product is momenteel niet op voorraad. Vul hieronder uw e-mailadres in en wij informeren u zodra het product beschikbaar is.
