I was removing the air intake and I accidentally snapped the smaller of the two lines attached to it. I believe it is a vacuum line (It was extremely dry and brittle). I have searched numerous places on this forum and other BMW ones, however I cannot seem to find a consistent and definitive answer.
Can anyone tell me what specifically this is for and where it goes? How hard is it to change? Is there a part number for this? I cannot find it anywhere.
Also, I have a check engine light and got it scanned at Autozone. I am getting the following codes:
P0031 HO2S Heater Control Circuit Low (Bank 1, Sensor 1)
P0051 HO2S Heater Control Circuit Low (Bank 2, Sensor 1)
P0037 HO2S - 12 (Bank 1 Sensor 2) Heater Circuit Low Input
P0057 HO2S Heater Control Circuit Low (Bank 2, Sensor 2)
Could these codes be related to the broken vacuum line? It is such a thin line and I have read on numerous BMW forums that people drive with it removed all the time, so I did not think it would cause a check engine light.