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Home › Saturn › 2005 › Relay FWD › Repair and Diagnosis › Engine Performance › System › Engine Control System - 3.5L - DTC P0016 - P0137 › DTC Tests › DTC P0133 › Conditions for Setting the DTC

Conditions for Setting the DTC

The PCM detects that the HO2S 1 rich-to-lean and lean-to-rich transition time takes longer than a calibrated value.
This diagnostic runs once per trip.