64 Cheyenne Posted April 8, 2009 Share Posted April 8, 2009 This is a pic of an 89 XJ I just got On the 87 MJ I put a screw in this The small rubber plug that comes out of the TB - carries vacuum to the MAP sensor.On the top seems that it is open Is it missing a vacuum line? does it need/or is it supposed to be plugged? Link to comment Share on other sites More sharing options...
IDXJ Posted April 8, 2009 Share Posted April 8, 2009 If you pull that connector off the TBI, you can see the backside of the top is a plug that holds the connector to the TBI. Link to comment Share on other sites More sharing options...
Windowsrookie Posted April 8, 2009 Share Posted April 8, 2009 No, that isn't actually a hole. It's just an indent to help hold that MAP sensor vacuum line. Link to comment Share on other sites More sharing options...
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