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Mazda
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1998
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Protege ES L4-1839cc 1.8L DOHC
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Repair and Diagnosis
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A L L Diagnostic Trouble Codes ( DTC )
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Testing and Inspection
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P Code Charts
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P0140
P0140
P0140 O2S 12-NO ACTIVITY DETECTED
PART 1 OF 3
PART 2 OF 3
PART 3 OF 3
