I did not understand this connection on the engine - All Questions About Your Vehicle

When I bought it in my car, it had an open air filter, I disassembled it, I installed the original, but it is not like the figure, my hoses,

I have closed the pipe number 2 with screws,

Number 1 was idle, I connected it with number 3, but I wanted it to be like in the picture. When I connected 3, 3, I started to get cracked noises from the engine. but this situation bothers me

Where is the number 4 pipe going I couldn't solve it

I am waiting for urgent help.

And it came to my mind, wouldn't it be a mistake to draw unrelated air from the number 4 butterfly?

08.05.2020 18:57	# 1
Barbar_35
When I bought it in my car, it had an open air filter, I disassembled it, I installed the original, but it is not like the figure, my hoses, I have closed the pipe number 2 with screws, Number 1 was idle, I connected it with number 3, but I wanted it to be like in the picture. When I connected 3, 3, I started to get cracked noises from the engine. but this situation bothers me Where is the number 4 pipe going I couldn't solve it I am waiting for urgent help. And it came to my mind, wouldn't it be a mistake to draw unrelated air from the number 4 butterfly?

08.05.2020 18:57	# 2
Barbar_35
Don't you guys who know who uses 106, I think I own a 106 owner

	I did not understand this connection on the engine
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