Ford 2.9ltr Cosworth 24 Valve V6 ECU Plug Pin Connections WWW.EscortUpgrades.co.uk Numbers left blank indicate that the pin is not in use. PIN Description/Destination 1. Permanent Live Feed/Battery +ve 2. Brake On/Off (BOO) Switch – part of diagnostics system 3. Vehicle Speed Sensor (VSS) 4. EDIS Module Pin 2 & Rev Counter Signal 5. . 6. . 7. Engine Coolant Temperature Sensor (ECT) 8. Kick Down Switch (KDS) for automatic transmission and also used as part of diagnostics system 9. FDS2000 Diagnostics Computer Socket (later deleted) 10. Air Conditioning Low Pressure Switch (raises idle rpm to maintain A.C. system pressure) 11. . 12. . 13. . 14. Mass Air Flow Sensor (MAF) 15. Mass Air Flow Sensor (MAF) 16. EDIS Module Pin 4 (Shielded) 17. Diagnostics Socket – Fault Code Reader (3 pin socket under bonnet) 18. . 19. . 20. Ground 21. Idle Speed Control Valve (ISCV) 22. Fuel Pump Relay Switching 23. . 24. . 25. Air Charge Temperature Sensor (ACT) 26. Throttle Position Sensor (TPS) & Exhaust Pressure Transducer (EPT) 27. Exhaust Pressure Transducer (EPT) Signal 28. FDS2000 Diagnostics Computer Socket (later deleted) 29. HEGO (Lambda) Sensor – L.H. 30. Park/Nuetral Switch (automatic transmission) 31. Canister Purge Solenoid (EVAP) –part of fuel tank venting system 32. . 33. Electronic Vacum Regulator (EVR) 34. Signal to Trip Computer 35. . 36. EDIS Module Pin 3 37. Input from Power Splice – Power splice also supplies Sensors and Relays 38. . 39. HEGO (Lambda) Sensor – R.H. 40. Mass Air Flow Sensor (MAF) & Battery –ve 41. . 42. . 43. . 44. . 45. . 46. ACT, EPT, TPS & ECT Sensor Supplies 47. Throttle Position Sensor (TPS) Signal 48. Diagnostics Socket- Fault Code Reader (3 pin socket under bonnet) 49. Engine Ground 50. . 51. . 52. 3rd/4th Gear Shift (automatic transmission) 53. Torque Convertor lock up solenoid (automatic transmission) 54. Air Conditioning 55. . 56. EDIS Module Pin 1 57. Input from Power Splice – Power splice also supplies Sensors and Relays 58. Injectors 1, 2 & 3 59. Injectors 4, 5 & 6 60. Battery –ve Redundant pins: Total: 2, 3, 8, 9, 10, 27, 28, 30, 31, 33, 34, 52, 53, 54 Autobox Pins: 8, 30, 52, 53 Emissions Pins: 27, 31, 33 Non – essential: 2, 3, 9, 10, 28, 34, 54