Toyota Corolla (E120) 2002–2008 Repair Manual / Exhaust / Removal & installation and disassembly & reassembly
Toyota Corolla (E120): Removal & installation and disassembly & reassembly
1. Remove oxygen sensor
- Remove a clip and tear off the floor mat.
- disconnect a oxygen sensor connector.
- Remove the oxygen sensor.
2. Remove tail pipe assy
- Remove 2 bolts, 2 springs and tail pipe assy.
3. Remove floor panel brace front
- Remove 2 nuts and the front floor panel brace front.
4. Remove exhaust pipe assy front
- Remove 2 bolts, 2 springs and exhaust pipe assy front.
5. Install exhaust pipe assy front
- using vernier calipers, measure the free length of the compression
spring.
Minimum length: 41.5 Mm (1.634 In.) Hint
: if the free length is less than minimum, replace the compression spring.
- install a new gasket on the exhaust manifold.
- install the exhaust pipe front with 2 bolts and 2 springs.
Torque: 43 nvm (440 Kgf·cm, 32 ft·lbf)
6. Install floor panel brace front
- install the front panel brace front with 2 nuts.
Torque: 30 nvm (302 Kgf·cm, 22 ft·lbf)
7. Install tail pipe assy
- using vernier calipers, measure the free length of the compression
spring.
Minimum length: 38.5 Mm (1.516 In.) Hint
: if the free length is less than minimum, replace the compression spring.
- install a new gasket on the exhaust pipe front.
- install the exhaust tail pipe with 2 bolts and 2 springs.
Torque: 43 nvm (440 Kgf·cm, 32 ft·lbf)
8. Install oxygen sensor
- Install the oxygen sensor to the exhaust pipe front.
Torque: 44 nvm (450 Kgf·cm, 33 ft·lbf)
- connect the oxygen sensor connector.
Hint
: after installing oxygen sensor, check that sensor wire is not twisted. If it is twisted, remove the oxygen sensor and reinstall it.
9. Check exhaust gas leak
Other materials:
Wiper & washer
Preparation
Sst
Recomended tools
Equipment
...
Circuit inspection
1 Check d squib circuit(airbag sensor assy center – horn button
assy)
Disconnect the negative (–) terminal cable from the battery,
and wait at least for 90 seconds.
disconnect the connectors between the airbag sensor
assy center and the horn button assy.
connect the ...
Circuit description
When a misfire occurs in the engine, hydrocarbons (hc) enter the exhaust in
high concentrations. If this hc
concentration is high enough, there could be an increase in exhaust emissions
levels. High concentrations
of hc passing through the catalyst also cause to temperature of the catalyst to ...