1987-1989 Ford F-Series/Bronco EEC-IV Wiring Diagram (3 of 7) - ECA Pinout

This scanned page is sheet 3 of 7 of the 1987 through 1989 Ford F-Series/Bronco wiring diagram set (copyright 1994, Mitchell International). It depicts the EEC-IV engine control system wiring for the 5.0L, 5.8L, and 7.5L electronic engine control assembly (ECA), showing the 60-pin ECA connector with pin numbers, signal names (KAPWR, ISC-BPA, FP, KS, IDM, PSPS, ACT, MAP, VREF, SIG RTN, ECT, EVP, TP, STI, HEGO, ACCS, NDS, AM2, CANP, EVR, IGN GND, SPOUT, PIP, STO, V PWR, IMS, INJ BANK #1/#2, CASE GND, PWR GND), and wire color codes for each circuit. Connected components include the EEC power relay, fuel pump relay, inertia switch, ignition switch, power steering pressure switch, speed sensor, knock sensor (5.0L only), air charge temp sensor, throttle air bypass valve, MAP sensor, EGR valve position sensor, throttle position sensor, engine coolant temp sensor, heated oxygen sensor (HEGO), canister purge solenoid (5.8L over 8500 GVW & 7.5L), thermactor TAD/TAB solenoids, EGR vacuum regulator solenoid, EEC-IV self test connector with check engine light, noise capacitor, ignition coil, distributor, and the eight fuel injectors (banks #1 and #2). Resistor values of 2.2 kΩ and 1.8 kΩ are noted.