Ford M-12071-E302/H302 5.0 EFI Engine Harness Diagram - Connector & Wire Colors

This document is a labeled diagram and connector chart for the Ford engine wiring harness, part numbers M-12071-E302 and M-12071-H302 (Ford Racing/Motorsport EFI 302 engine harnesses). The top of the page shows an illustration of the harness laid out relative to the front of the engine, with 19 numbered connector callouts. Below the illustration is a wire color abbreviation legend (P=Purple, PK=Pink, LB=Light Blue, R=Red, W=White, GY=Gray, Y=Yellow, T=Tan, BR=Brown, BK=Black, LG=Light Green, O=Orange, GR=Green, BL=Blue, DB=Dark Blue, DG=Dark Green). A table then identifies each numbered connector, what it connects to, and its wire colors: connectors 1–8 serve fuel injectors #1–#8 (each with a red wire plus a unique color), connector 9 is the Throttle Position sensor, 10 the Oil Pressure Sender, 11 the Coolant Temperature Sender, 12 the Canister Purge Solenoid, 13 the EGR Position Sensor, 14 and 15 the ten-pin (black and white) connectors, 16 the Idle Speed Control, 17 the Air Charge Temperature Sensor, 18 the Engine Coolant Temperature Sensor, and 19 the H.E.G.O. sensor ground. Readers can use this to identify connectors and verify wire colors when installing or troubleshooting this EFI engine harness.