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Home >> Porsche >> 1989 >> 944 L4-2681cc 2.7L >> Repair and Diagnosis >> Powertrain Management >> Emission Control Systems >> Service and Repair

Emission Control Systems: Service and Repair



CHECK IDLE AIR/FUEL RATIO (%CO) AND SPEED
(ADJUST TO SPECIFIED VALUE IF NECESSARY, SEE SPECIFICATIONS) once @ 2,000-2500 miles


CHECK EXHAUST SYSTEM AND CATALYTIC CONVERTER FOR LEAKS,
DAMAGE, OR WORN HANGERS after 1st 2,000-2,500 miles, then every 15K miles


CHECK EVAPORATIVE CONTROL AND PCV SYSTEM HOSES AND CONNECTIONS
FOR CRACKS, SWELLING, LEAKS, OR OTHER DAMAGE every 15K miles


REPLACE OXYGEN SENSOR every 60K miles