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.
Fuel Control
A feedback carburetor is used which contains an electronically operated mixture control (M/C) solenoid. The M/C solenoid controls a metering rod in the float bowl. The metering rod system supplements fuel supplied by the idle and main systems in the carburetor. It varies the air/fuel ratio within a precalibrated range.
The M/C solenoid also controls air/fuel ratio through the use of an idle air bleed that operates in conjunction with the metering rod. A problem in the M/C solenoid circuit may set a Code "23" or "54".
NO RELATED
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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.