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.
Feedback Carburetor System: Description
The Feedback Carburetor (FBC) system maintains a controlled air/fuel ratio. The system includes the Electronic Control Module ECM), oxygen sensor, mixture control solenoid, coolant temperature sensor, intake air temperature sensor, ambient pressure sensor (for altitude compensation), fuel-cut solenoid, second air solenoid, bowl vent solenoid, Wide Open Throttle (WOT) microswitch and idle microswitch.
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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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.