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Home >> Pontiac >> 1998 >> Trans Sport SE, Van Passenger Extended >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - Tests W/Codes >> Diagnostic Trouble Codes >> DTC P1134 - Ho2S Transition Time Ratio Sensor 1 >> Diagnostic Aids

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Diagnostic Aids

Check HO2S 1 heater circuits for intermittent faults. If HO2S 1 heater circuits are okay, replace HO2S 1.

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