Mike's Workshop Manuals
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Genesis
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2020
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G90 3.3T Premium, AWD
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Repair and Diagnosis
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Engine Performance
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System
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Engine Control System Diagnosis - 3.3L (5 Of 5)
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DTC P2237-00: O2 Sensor Pumping Current Circuit/Open (Bank 1 Sensor 1)
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Component Inspection
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Check The Condition Of HO2S
Check The Condition Of HO2S
Check HO2S for poor connection or loose terminal.
Check if HO2S is securely installed.
Is HO2S in good condition?
YES
Go to next procedure.
NO
Repair it and then go to "
VERIFICATION OF VEHICLE REPAIR
" procedure.