P2181 PORSCHE - Thermostat Stuck Open
P2181 Porsche DescriptionThis fault is stored if the engine is not heated from below 40 °C (104 °F) to over 60 °C (140 °F) after throughput of a defined mass air flow.
This indicates that the thermostat may be stuck in open position.
An unchanged temperature signal may also be caused by a faulty sensor, however. Check the fault memory entry.
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