Test N - Dynamic Response Test
WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 1984 Ford RV Cutaway, 1984 Ford Pickup, 1984 Ford Econoline, 1984 Ford Cutaway, and 1984 Ford Club Wagon. However, it is still accessible from the selected car via links, so may be relevant.
Code 77. This code appeared because the system failed to recognize a brief wide open throttle. Repeat KEY ON-ENGINE RUNNING (KOER) SELF-TEST . After Dynamic Response Code is received, perform a wide open throttle. If code 77 is still present, replace ECA and repeat QUICK TEST . If no code 77, Dynamic Response Test is passed. Repair any service codes received as required.