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.
Deceleration Control System: Description
The deceleration control system on B2200 models consists of 2 main systems, a slow fuel-cut system and coasting richer system. Slow fuel-cut system consists of a slow fuel-cut solenoid valve. Coasting richer system consists of coasting richer solenoid valve, clutch switch, neutral switch, idle switch and dashpot.
Deceleration control system on B2600 models also consists of 2 systems, a slow fuel-cut system and deceleration spark advance system. Slow fuel-cut system consists of a slow fuel-cut solenoid valve. Deceleration advance system consists of a vacuum solenoid valve that advances the timing using distributor vacuum advance.
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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.