Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSFORD1985BRONCO 5.8 G, STANDARD, TODREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 36 (2.8L FEEDBACK CARBURETOR EEC IV TESTING)CIRCUIT TESTSCIRCUIT TEST JJ
1985 Ford Bronco 5.8 G, Standard, TOD
Circuit Test JJ
1985 Ford Bronco 5.8 G, Standard, TODSECTION Circuit Test JJ
WARNING: This page is about a different car, the 1986 Ford Aerostar. However, it is still accessible from the selected car via links, so may be relevant.
- Code 14 Displayed. This code indicates that 2 successive erratic Profile Ignition Pick-Up (PIP) pulses were sent to ECA, causing possible engine miss or stall. Check EEC-IV and TFI ignition system for loose wires and connections, arcing secondary ignition components (coil, cap, wires, etc.), or an on-board 2-way radio. Make sure radio antenna and power leads are routed properly. If any of the above conditions are present, repair as necessary and repeat QUICK TEST . If none are present, go to next step.
- Turn key off and wait 10 seconds. Deactivate SELF-TEST. Using CONTINUOUS MONITOR (WIGGLE) TEST , observe VOM or STAR tester LED for indication of fault while lightly tapping on TFI ignition module and distributor, and while wiggling TFI harness connector. If fault is indicated, disconnect and inspect connectors and terminals. If connectors and terminals are okay, diagnose TFI ignition system. If no fault is indicated, go to next step.
- While in CONTINUOUS MONITOR (WIGGLE) TEST , observe VOM or STAR tester LED for fault while wiggling, shaking, or bending small sections of harness from TFI module to firewall. Also check harness from firewall to ECA. Isolate PIP circuit, if required. If fault is indicated, isolate and repair problem. Repeat QUICK TEST . If no fault indicated, go to next step.
- Turn key off and wait 10 seconds. Disconnect ECA 60-pin connector. Inspect connector and terminals for damage. If connector and terminals are okay, fault cannot be duplicated at this time. Diagnose TFI ignition system. If connector and terminals are damaged, repair as necessary and repeat QUICK TEST .
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.