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Home >> Mazda >> 2004 >> 3 i, Automatic >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> On-Board Diagnostic [Engine Control System] >> DTC P0138: Middle Rear Ho2S Circuit High Input >> Notes
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DTC P0138: Middle Rear Ho2S Circuit High Input: Notes

Fig 1: DTC P0138: Detection Condition & Possible Causes Chart
G00974494Courtesy of MAZDA MOTORS CORP.
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