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.
Electronic Control Assembly
The Electronic Control Assembly (ECA) is a microprocessor designed to continuously sample input signals from the engine sensors. The ECA uses the data to constantly adjust air/fuel ratio and ignition timing to meet various engine operating conditions.
The ECA contains a memory and specific programming information as required to determine ideal operating conditions. Different calibration information is used in different vehicle applications, such as California or Federal models.
It is located in front of the center console in the Escort, EXP and Lynx models. On all other models, it is located inside the right side cowl.
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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.