Mitsubishi Stealth 1994 Import Service Manual page 432

INTAKE AND EXHAUST -
Exhaust Pipe, Main Muffler and Catalytic Converter <Turbo>
SERVICE POINTS OF REMOVAL
4. 5. REMOVAL OF RUBBER HANGER / 6. MAIN MUFFLER
Support with a transmission jack, etc.
32. REMOVAL OF HEATED OXYGEN SENSOR
Disconnect the connector of the heated oxygen sensor, and
install the special tool to the heated oxygen sensor.
INSPECTION
Check the mufflers and pipes for corrosion or damage.
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Check the rubber hangers for deterioration or damage.
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Check for gas leakage from mufflers and pipes.
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Check if the main muffler active exhaust system valve can d
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be moved smoothly by hand.
SERVICE POINTS OF INSTALLATION
32. INSTILLATION OF HEATED OXYGEN SENSOR
Use the special tool to install the heated oxygen sensor.
3. INSTALLATION OF CABLE ASSEMBLY
Install with the paint mark facing up and adjust the adjusting
nut to obtain the illustrated dimension.