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.
Slow Fuel Cut System: Description
The Slow Fuel Cut system is used to close primary slow fuel passage of carburetor to prevent "dieseling" and overheating of exhaust system. It is part of the Computerized Engine Control (CEC) system.
Components of the system include the slow fuel cut solenoid valve, neutral switch, clutch switch (M/T) and idle switch.
626 models also incorporate a Coasting Richer System within the Slow Fuel Cut System. The Coasting Richer System opens secondary stage fuel line of carburetor during deceleration.
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.
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