Disconnect the MAP sensor connector (A).

Remove the MAP sensor (B).
Install the parts in the reverse order of removal with a new O-ring (C).
A/T Housing Reverse Idler Gear Installation (A/T)
Lightly coat the reverse idler gear shaft (A), the needle bearing (B),
and new O-rings (C) with lithium grease.
Assemble the new O-rings and the needle bearing on the reverse ...
Dashboard/Steering Hanger Beam Disassembly/Reassembly (Page-1)
Special Tools Required
KTC Trim Tool Set SOJATP2014
*Available through the Honda Tool and Equipment Program; call 888-424-6857
NOTE:
Put on gloves to protect your hands.
...