Front Exhaust Pipe

COMPONENT

REMOVAL





1. Disconnect the battery ground cable.
2. Disconnect the front oxygen (A/F) sensor connector.





^ LH side





^ RH side
3. Disconnect the front oxygen sensor connector.





^ LH side





^ RH side
4. Lift-up the vehicle.
5. Remove the under cover.
6. Remove the front oxygen (A/F) sensor harness from bracket.





^ LH side





^ RH side





7. Remove the clips which hold LH side oxygen sensor harness.





8. Remove the RH side front oxygen sensor harness from bracket.





9. Disconnect the rear oxygen sensor connector.





10. Separate the front exhaust pipe assembly from rear exhaust pipe.

WARNING: Be careful, exhaust pipe is hot.





11. Remove the nuts which hold front exhaust pipe onto cylinder heads.

CAUTION: Be careful not to pull down front exhaust pipe assembly.





12. Remove the bolt which secures front exhaust pipe assembly to hanger bracket.
13. Remove the front exhaust pipe from the vehicle.

CAUTION:
^ Disconnect front oxygen (A/F) sensor, front oxygen sensor and rear oxygen sensor harness from bracket.
^ Be careful not to let front exhaust pipe assembly fall off when removing as it is quite heavy.
^ After removing front exhaust pipe assembly, do not apply excessive pulling force on rear exhaust pipe.





14. Separate the front exhaust pipe (RH) from front exhaust pipe assembly.
15. Disconnect the front oxygen (A/F) sensor, front oxygen sensor and rear oxygen sensor.

INSTALLATION
1. Install the front oxygen (A/F) sensor, front oxygen sensor and rear oxygen sensor.
2. Install the front exhaust pipe (RH) to front exhaust pipe assembly.





NOTE: Replace the gaskets with new ones.

3. Install the front exhaust pipe assembly to the vehicle.





4. Temporarily tighten the bolt which installs front exhaust pipe assembly to hanger bracket.





5. Tighten the nuts which hold front exhaust pipe onto cylinder heads.





6. Tighten the bolts which install front exhaust pipe to rear exhaust pipe.





7. Tighten the bolt which holds front exhaust pipe assembly to hanger bracket.
8. Install the front oxygen (A/F) sensor harness to bracket.





^ LH side





^ RH side





9. Hold the LH side front oxygen sensor harness with clip.





10. Install the RH side front oxygen sensor harness to bracket.





11. Connect the rear oxygen sensor connector.
12. Install the under cover.
13. Lower the vehicle.
14. Connect the front oxygen (A/F) sensor connector.





^ LH side





^ RH side
15. Connect the front oxygen sensor connector.





^ LH side





^ RH side





16. Connect the battery ground cable.

INSPECTION
1. Make sure there are no exhaust leaks from connections and welds.
2. Make sure there are no holes or rusting.