Toyota Corolla cold start and automatic engine warm up system

when you starting your vehicle cold or first time on the day
old Toyota corolla vehicle has a function to warm the engine before you ride
it is an automatic throttle positioning system,
if you start your engine first time in day or cold start, the engine rpm goes up automatically and after 1m or less it will go down to normal idle speed
it is good for your vehicle engine health and it ll reduce engine worn
you can see in this video how the system work

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