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01-222
Appears on display Possible cause Corrective action High Oxygen Sensor (O2S) learned values High learned values at idle, not so high learned values at part throttle: - Check intake air system for
Page 24-121
Unmetered air between Mass Air Flow (MAF) Sensor -G70- and - Repair cause
Fuel injector blocked - Check fuel injectors
Page 24-97
Fuel pressure too low - Check fuel pressure control
Page 24-110
Mass Air Flow (MAF) Sensor -G70- faulty - Check Mass Air Flow (MAF)
Page 24-52
Oxygen Sensor (O2S) heating faulty or Oxygen Sensor (O2S) - Check Oxygen Sensor
Page 24-38
Unmetered air at exhaust manifold gasket
Repair Manual, 2.8 Liter VR6 4V Engine Mechanical,
- Check exhaust system for Measured value (data) blocks |