PROCEDURE
INSTALL HEATED OXYGEN SENSOR
INSTALL FRONT EXHAUST PIPE ASSEMBLY (TWC: Rear Catalyst)
Using a vernier caliper, measure the free length of the compression springs.
| Standard Length | 43.0 mm (1.69 in.) |
| Minimum Free Length | 41.5 mm (1.63 in.) |
If the free length is less than the minimum, replace the compression spring.
Temporarily install a new exhaust pipe gasket to the exhaust manifold converter sub-assembly (TWC: Front Catalyst).
| *1 | Exhaust Manifold Converter Sub-assembly (TWC: Front Catalyst) |
| *2 | Exhaust Pipe Gasket |
| *a | Wooden Block |
Using a plastic hammer and wooden block, tap in the exhaust pipe gasket until its surface is flush with the exhaust manifold converter sub-assembly (TWC: Front Catalyst).
Note
Be sure to install the exhaust pipe gasket in the correct direction.
Do not reuse the exhaust pipe gasket.
Do not damage the exhaust pipe gasket.
Do not push in the exhaust pipe gasket by using the exhaust pipes when connecting them.
Connect the front exhaust pipe assembly (TWC: Rear Catalyst) to the 2 exhaust pipe supports.
Install the front exhaust pipe assembly (TWC: Rear Catalyst) to the exhaust manifold converter sub-assembly (TWC: Front Catalyst) with the 2 compression springs and 2 bolts.
Tech Tips
After installation, check that the space between the flanges of the exhaust manifold converter sub-assembly (TWC: Front Catalyst) and front exhaust pipe assembly (TWC: Rear Catalyst) is consistent front-to-rear and left-to-right.
| *1 | Exhaust Manifold Converter Sub-assembly (TWC: Front Catalyst) |
| *2 | Front Exhaust Pipe Assembly (TWC: Rear Catalyst) |
| *3 | Exhaust Pipe Gasket |
| *a | Space between Flanges: 8.5 mm (0.335 in.) |
Engage the clamp and connect the heated oxygen sensor connector.
INSTALL FRONT FLOOR CENTER BRACE
Install the 3 front floor center braces to the vehicle body with the 12 bolts.
INSTALL TAIL EXHAUST PIPE ASSEMBLY
Using a vernier caliper, measure the free length of the compression springs.
| Standard Length | 40 mm (1.57 in.) |
| Minimum Free Length | 38.5 mm (1.52 in.) |
If the free length is less than the minimum, replace the compression spring.
Temporarily install a new exhaust pipe gasket to the front exhaust pipe assembly (TWC: Rear Catalyst).
| *1 | Front Exhaust Pipe Assembly (TWC: Rear Catalyst) |
| *2 | Exhaust Pipe Gasket |
| *a | Wooden Block |
Using a plastic hammer and wooden block, tap in the exhaust pipe gasket until its surface is flush with the front exhaust pipe assembly (TWC: Rear Catalyst).
Note
Be sure to install the gasket in the correct direction.
Do not reuse the exhaust pipe gasket.
Do not damage the exhaust pipe gasket.
Do not push in the exhaust pipe gasket by using the exhaust pipes when connecting them.
Connect the tail exhaust pipe assembly to the 4 exhaust pipe supports.
Install the tail exhaust pipe assembly to the front exhaust pipe assembly (TWC: Rear Catalyst) with the 2 bolts and 2 compression springs.
Tech Tips
After installation, check that the space between the flanges of the tail exhaust pipe assembly and front exhaust pipe assembly (TWC: Rear Catalyst) is consistent front-to-rear and left-to-right.
| *1 | Front Exhaust Pipe Assembly (TWC: Rear Catalyst) |
| *2 | Tail Exhaust Pipe Assembly |
| *3 | Exhaust Pipe Gasket |
| *a | Space between Flanges: 6.5 mm (0.256 in.) |
INSPECT FOR EXHAUST GAS LEAK
If gas is leaking, tighten the areas necessary to stop the leak. Replace damaged parts as necessary.
Perform Inspection After Repair after repairing an exhaust gas leak.
INSTALL FRONT FLOOR COVER LH (w/ Cover)
Engage the 5 clamps to install the front floor cover LH to the vehicle body with the 2 bolts and clip.
INSTALL FRONT FLOOR COVER RH (w/ Cover)
Tech Tips
Perform the same procedure as for the front floor cover LH.