I was inspecting a used Toyota Auris (2009-2010). I turned the engine on and with the car idling I removed the oil cap from the engine. The car stalled within seconds and the engine almost shut down. I have read several websites. Half of the people argue that this is normal because the sensors cannot meter and adjust the air/fuel mix. Other people say that the engine and / or the PCV probably have problem. Has somebody replicated this? Do you have any views if it normal or an indication of a faulty engine? My Toyota Corolla (2004) does not stall and continues running but I expect the technology is completely different. Thank you!

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