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Porsche
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1990
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944 Turbo L4-2479cc 2.5L SOHC Turbo
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Repair and Diagnosis
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Powertrain Management
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Emission Control Systems
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Evaporative Emissions System
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Specifications
Evaporative Emissions System: Specifications
THERMAL VACUUM VALVE
Open @ temperature
>approx. 58°C (140°F)