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Home >> Mazda >> 2000 >> MPV DX >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Self-Diagnostics >> Diagnostic Tests >> DTC P0144: Rear Ho2S, Input High >> Condition
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DTC P0144: Rear Ho2S, Input High: Condition

DTC is set when rear oxygen sensor signal voltage is more than .45 volt for 6 seconds during deceleration fuel cut. Possible causes are: