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Old 03-21-2011, 12:11 AM   #65 (permalink)
orange4boy
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Location: The Wet Coast, Kanuckistan.
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The Golden Egg - '93 Toyota Previa DX
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Quote:
Originally Posted by 2009Prius View Post
Was this graph recorded with both the engine and the transaxle heaters running from time 0:00? If so then does this mean that the engine heater heats up the engine much quicker than the transaxle heater does the transaxle? Thanks!
Yes. The engine heats up much faster partly because it has a much smaller mass than the transaxle. The coolant temp sender is also immersed in coolant in the engine whereas the MG1 and MG2 probes are in the windings so they would heat up slower and this would lag the coolant temp.
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