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).
Warm Up TWC Removal/Installation
NOTE: If the warm up TWC is damaged internally, inspect the under-floor TWC
for debris.
Raise the vehicle on a lift.
Remove the bolts (A).
Lower the vehicle.
...
Stator Test
Check that there is continuity between each lead (A):
If there is continuity, go to step
24.
If there is no continuity, replace the stator.
...
Rocker Arm and Shaft Inspection
Remove the rocker arm assembly.
Disassemble the rocker arm assembly.
Measure the diameter of the shaft at the first rocker location.
Zero the gaug ...