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6E–397 TROOPER 6VE1 3.5L ENGINE DRIVEABILITY AND EMISSIONS Diagnostic Trouble Code (DTC) P1134 HO2S Transition Time Ratio Bank 1 Sensor 1 D06RY00171 Circuit Description The powertrain control module (PCM) monitors the Conditions for Setting the DTC D No related DTCs. D Engine coolant temperature (ECT) is above 50 ° C (122 ° F) for automatic transmission; 75 ° C (167 ° F) for manual transmission. D Engine is operating in “closed loop.” D The engine has been running at least one minute. D Canister purge duty cycle is greater than 2%. D Engine speed is between 1500 RPM and 3000 RPM. D Mass air flow (MAF) is between 9 g/second and 42 D Above conditions are present for a 3-second D 90 seconds after “closed loop” and stoichiometric Action Taken When the DTC Sets D The PCM will illuminate the malfunction indicator lamp D ”Open loop” fuel control will be in effect. D The PCM will store conditions which were present Conditions for Clearing the MIL/DTC D The PCM will turn the MIL “OFF” on the third D A history DTC P1134 will clear after 40 consecutive D DTC P1134 can be cleared by using the Tech 2 “Clear Diagnostic Aids A malfunction in the HO2S heater ignition feed or ground |