HOLDEN GEN III V8, Обучение по обслуживанию

Страница: 63 / 113

GEN III V8 ENGINE MANAGEMENT
DTC P0175 Fuel System Rich Bank 2
Conditions for running DTC P0175
• DTCs P0101, P0102, P0103, P0107, P0108, P0112, P 0 1 1 3 , P 0 1 1 7 , P0118, P 0 1 2 1 , P0122, P0123, P0335,
P0336, P0351, P0352, P0353, P0354, P0355, P0356, P0357, P0358, P 1 1 1 1 , P 1 1 1 2 , P1258, are not set.
• The engine coolant temperature is between 50°C and 115°C.
• The barometric pressure is greater than 74 kPa.
• The mass air flow is between 5.0 g/s and 90 g/s.
• The manifold absolute pressure is between 26 kPa and 90 kPa.
• The intake air temperature is between -20°C and 90°C.
• The engine speed is between 400 RPM and 3000 RPM.
• The TP sensor angle is less than 90%.
• The vehicle speed is less than 137 km/h.
Conditions for setting DTC P0175
• The average Long Term Fuel Trim cell values are above a predetermined threshold.
• All the above conditions are present for at least six seconds.
Action taken when DTC P0175 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.
Conditions for clearing the Check Powertrain Lamp and DTC P0175
• The PCM turns the Check Powertrain Lamp OFF after one drive trip that the diagnostic runs and does not
fail within the same conditions that the DTC last failed.
NOTE: If the last failure was during a non-typical driving condition, the Check Powertrain Lamp may remain
ON longer than the one drive trip. Review the Freeze Frame/Failure Records for the last failure conditions.
• A last test failed (Current DTC) clears when the diagnostic runs and does not fail.
DTC P0125 Engine Coolant Temperature Sensor Excess Time To Closed Loop Fuel Control
Conditions for running DTC P0125
• DTCs P0112, P0113, P0117, P 0 1 1 8 are not set.
• The engine is operating.
• The engine coolant temperature is between -36°C and 40°C at engine start-up.
• The intake air temperature is greater than -7°C.
• The vehicle speed is greater than 1.6 km/h.
Conditions for setting DTC P0125
The closed loop coolant temperature of 34 °C is not reached within a predetermined time. The maximum
allowable time depends on the start-up coolant temperature and the amount of airflow into the engine. The
range for the time is from 2 minutes and 20 seconds to 22 minutes and 30 seconds.
Action taken when DTC P0125 Sets
• The PCM stores the DTC information into memory 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.
Conditions for clearing the Check Powertrain Lamp and DTC P0125
• The Check Powertrain Lamp will not be illuminated.
• A last test failed (current DTC) clears when the diagnostic runs and does not fail.
Page • 58 GEN III V8 ENGINE MANAGEMENT