This is because the engine is cold. The oil is all at the bottom, and does not want to move around. So the engine revs up more because it is trying to produce heat and get the oil circulating as fast as possible. The engine runs in an open loop, meaning the computer has a preset running condition that is in effect until the car warms up enough for the computer to monitor the engine accurately for itself.
start the engine and press the gas pedal while it is in park
you should never rev your engine when you start your car it sometimes takes the oil pump time to pump oil up into the engine heads if you rev it too much your engine could suck a valve or blow a lifter.
It's not warmed up yet.
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malfunction? Did you turn the car off?
Rev limiter to save the engine from blowing up. Rev limiter to save the engine from blowing up.
Could be a very plugged up fuel filter or catalytic converter.
It's supposed to do that. It is the "dash pot" emulating putting your foot on the accelerator to start the car. The computer does all that for you. Keeps stupid people from flooding the engine out. That is your "dashpot" at work. It's supposed to "rev up" and then calm back down. It imitates putting your foot on the accelerator
may be use a super charger or a turbo charger
cause the coolant temp is low , automobiles tend to do that when there cold
yes it can. it will rev up like it wants to start but it wont turn over hope that helped
It has a rev limiter. It designed to keep the engine from over revving and doing damage.