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Need some quick help, vacuum port on intake

machinisttx

NAXJA Forum User
Location
texas
2000 XJ 4.0, 4x4, etc.

On the driver side of the intake manifold there are three vacuum ports. I just found that the one closest to the front of the engine has nothing attached. I'm not sure what is supposed to attach there and haven't been able to find a vacuum hose diagram. I guess this explains why my check engine light has been on and it's registering an 02 sensor code.

Thanks in advance.

ETA: found some info, looks like it's just supposed to be capped?
 
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