Almera check engine light hose

I had a similar issue with my Almera. Turned out to be a defective hose connection from the pump to the valve in the air intake system. Fluctuations in manifold pressure triggered the sensor.

Could you tell me where that hose connection is located? I want to check for wear before going to a mechanic.

It's near the throttle body, connecting to the air valve. Given the Almera's age, I'd recommend a qualified technician inspect it. I ended up going to a workshop.

Took the car to a workshop as suggested. A defective hose connection from the pump to the valve was indeed the problem. Repair cost was 175€, thanks for the help!