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Home >> Sterling >> 1988 >> 825 SL, 2.5 B >> Repair and Diagnosis >> Engine Performance >> System >> Electronic Control System >> Description & Operation >> Control Devices >> Pressure Regulator Cut-Off Valve

Pressure Regulator Cut-Off Valve

When coolant temperature is greater than 221°F (105°C) or intake air temperature is greater than 76°F (80°C), the pressure regulator cut-off solenoid valve is energized, cutting manifold vacuum to the fuel pressure regulator to ensure high pressure to injector to prevent vapor lock.

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