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Re: What are "heat plates"?
Posted by fsik (more from fsik) on Tue, 10 Jul 2001 15:41:33
In Reply to: What are "heat plates"?, nickR, Tue, 10 Jul 2001 15:05:19
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It sounds like the intake preheat in some markets. Dunno if Canada was one of them, but it makes sense. I found this:
"On cars for certain markets the Trionic system is supplemented with heat plates in the inlet manifold passages to reduce the emission of harmful substances when starting from cold...If the coolant temperature is below 85°C (185°F) when the engine is started, the control module will ground relay 553, causing it to operate...The relay releases when the engine temperature exceeds 85°C (185°F) or after a maximum of 4 minutes ."
So, they only turn on until it's warm, so there's no performance issue in terms of heat. I don't know exactly where they are, there might be a restriction issue, they're not on US-spec cars.
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