HOLDEN GEN III V8, Service Training

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GEN III V8 ENGINE MANAGEMENT
DTC P0153 Heated Oxygen Sensor (H02S) Slow Response Bank 2 Sensor 1
Conditions for running DTC P0153
• DTCs P0101, P0102, P0103, P0112, P0113, P0117, P 0 1 1 8 , P0121, P0122, P0123, P0335, P0336, P0351-
P0358, P1258,are not set.
• The engine coolant temperature is greater than 65°C.
• The ignition voltage is greater than 9.0 volts.
• The fuel system is operating in Closed Loop.
• The engine speed between 1000 RPM and 2300 RPM.
• The engine air flow is between 20 g/s and 50 g/s.
• The EVAP canister purge duty cycle is greater than 0%.
• The engine run time is greater than 120 seconds.
Conditions for setting DTC P0153
• The lean to rich response (below 300 mV to above 600 mV) average time is greater than 100 milliseconds.
• The rich to lean response (above 600 mV to below 300 mV) average time is greater than 100 milliseconds.
• The above conditions are met for at least 100 seconds.
Action taken when DTC P0153 Sets
• The PCM illuminates the Check Powertrain Lamp when the diagnostic runs and fails.
• The PCM records the operating conditions at the time the diagnostic fails. The PCM stores this information
in the Freeze Frame/Failure Records.
• Open Loop Fueling.
Conditions for clearing the Check Powertrain Lamp and DTC P0153
• The PCM turns the Check Powertrain Lamp OFF after one ignition cycle that the diagnostic runs and does
not fails.
• A last test failed (current DTC) clears when the diagnostic runs and does not fail.
DTC P0154 Heated Oxygen Sensor Insufficient Activity Bank 2 Sensor 1
Conditions for running DTC P0154
• DTCs P0101, P0102, P0103, P0112, P0113, P0117, P0118, P0121, P0122, P0123, P0335, P0336, P0351-
P0358, P1258,are not set.
• The ignition voltage is greater than 9.0 volts.
• The fuel system is operating in Closed Loop.
• The engine run time is greater than 70 seconds.
• The engine coolant temperature is greater than 48°C.
Conditions for setting DTC P0154
• The H02S signal voltage is steady between 350 mV and 550 mV.
• The conditions are present for at least 70 seconds.
Action taken when DTC P0154 Sets
• The PCM illuminates the Check Powertrain Lamp when the diagnostic runs and fails.
• The PCM records the operating conditions at the time the diagnostic fails. The PCM stores this information
in the Freeze Frame and/or the Failure Records.
• Open Loop Fueling.
Conditions for clearing the Check Powertrain Lamp and DTC P0154
• The PCM turns the Check Powertrain Lamp OFF after one ignition cycle that the diagnostic runs and does
not fails.
• A last test failed (current DTC) clears when the diagnostic runs and does not fail.
GEN III V8 ENGINE MANAGEMENT Page - 55