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Home >> Volvo >> 1988 >> 240 L4-2.3L SOHC VIN 88 B230F >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Testing and Inspection >> Component Tests and General Diagnostics >> Oxygen Sensor Feedback System >> Malfunction Tests >> Malfunction Test 9

Malfunction Test 9


1. If CO reading increases when connecting electrical connector at oxygen sensor, replace oxygen sensor.
2. Perform ``System Test.''



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