New To E30s, Have a question about this thing(PIC)
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05-19-2013, 08:26 PM
14 Years with the E30
Join Date: Sep 2006
Location: St. Catharines
Car: 325i 1987
That is usually hooked to the air filter box. I believe it's an air pressure sensor so if you change elevations it allows the car to run properly.
Performance one step at a time.
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