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WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2005 Honda S2000, 2004 Honda S2000, 2003 Honda S2000, 2002 Honda S2000, and 2001 Honda S2000. However, it is still accessible from the selected car via links, so may be relevant.

ECT at 158 °F (70 °C) or higher.
Intake air temperature (IAT) at 20 °F (-7 °C) or higher.
Vehicle speed is steady, and vehicle speed sensor (VSS) reads more than 25 mph (40 km/h).

At engine start up, ECT and IAT are higher than 32 °F (0 °C), but lower then 95 °F (35 °C).
At engine start up, the ECT and IAT are within 12 °F (7 °C) of each other.

ECT at 140 °F (60 °C) or higher.