2.0L - DTCS P2174 To P2271

• DTC Troubleshooting
  • P2174 Low Airflow/Restriction Detected (Instantaneous Accumulation)
    • Theory Of Operation
    • When Monitored
    • Set Condition
    • Default Action
    • Possible Causes
    • Diagnostic Test
  • P2181 Cooling System Performance
    • Theory Of Operation
    • When Monitored
    • Set Condition
    • Default Action
    • Possible Causes
    • Diagnostic Test
  • P219A Bank 1 Air/Fuel Ratio Imbalance
    • Theory Of Operation
    • Diagnostic Test
    • When Monitored
    • Set Condition
    • Default Action
    • Possible Causes
  • P2227 Barometric Pressure Circuit Performance
    • When Monitored
    • Set Condition
    • Default Action
    • Possible Causes
    • Diagnostic Test
  • P2228 Barometric Pressure Circuit Low
    • When Monitored
    • Set Condition
    • Default Action
    • Possible Causes
    • Diagnostic Test
  • P2229 Barometric Pressure Circuit High
    • When Monitored
    • Set Condition
    • Default Action
    • Possible Causes
    • Diagnostic Test
  • P2237 O2 Sensor 1/1 Pump Cell Current Circuit/Open
    • Theory Of Operation
    • When Monitored
    • Set Condition
    • Default Action
    • Possible Causes
    • Diagnostic Test
  • P2243 O2 Sensor 1/1 Reference Voltage Circuit/Open
    • Theory Of Operation
    • When Monitored
    • Set Condition
    • Default Action
    • Possible Causes
    • Diagnostic Test
  • P2251 O2 Sensor 1/1 Negative Current Control Circuit/Open
    • Theory Of Operation
    • When Monitored
    • Set Condition
    • Default Action
    • Possible Causes
    • Diagnostic Test
  • P226D Particulate Filter Deteriorated/Missing Substrate Bank 1
    • Notes
    • When Monitored
    • Set Condition
    • Default Action
    • Possible Causes
    • Diagnostic Test
  • P2271 O2 Sensor 1/2 Signal Biased Rich
    • Theory Of Operation
    • When Monitored
    • Set Condition
    • Default Action
    • Possible Causes
    • Diagnostic Test