E.C.C. DESCRIPTION (Models with catalyzer) — Fuel Cut Control
EF & EC-40prose procedureApplies to GA13DS, GA14DS & GA16DS engines with catalyzer. Engine-speed input is from crank angle sensor on models with E.G.R. and from ignition coil on models without E.G.R. Fuel cut rpm threshold differs by transmission: 4,200 rpm (M/T) vs 3,690 rpm (A/T).
GA13DS, GA14DS & GA16DS
Fuel Cut Control
The fuel cut solenoid valve is attached to the carburetor with its needle valve facing the fuel passage of the primary slow system. When current flows through the fuel cut solenoid valve, the needle valve retracts, allowing the fuel to flow through the primary slow system. When current does not flow through this system, the fuel will be shut off.
OPERATION
Fuel cut system operation
Engine rpm: 4,200 or more (M/T), 3,690 (A/T); Water temperature: 63°C (145°F) or more; Throttle valve switch: OFF; Neutral and clutch switch: OFF
Fuel cut system operationON
Except above
Fuel cut system operationOFF