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TroubleCodes (101 of 130)

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2.7L V6 - Auto



Trouble Code: P2270

HO2S Signal Stuck Rich (Bank 1 Sensor 2)

Trouble Code Conditions: Plausibility check during shift of lambda set point to rich from lean. No fuel cut off. No full load phase. No fuel trim error detected. Delay time to start diagnosis: 13 to 30 seconds. No relevant failure.

Possible Causes:



Three way catalytic converter (TWC)
 
Air leakage in exhaust system
 
Faulty rear HO2S sensor
 

Trouble Code: P2271

O2 Signal Stuck Rich (Bank 1/2 Sensor 1)

Trouble Code Conditions: Plausibility check during shift of lambda set point to rich from lean. No fuel cut off. No full load phase. No fuel trim error detected. Delay time to start diagnosis: 13 to 30 seconds. No relevant failure.

Possible Causes:



Three way catalytic converter (TWC)
 
Air leakage in exhaust system
 
Faulty rear HO2S sensor
 

Trouble Code: P2422

Evaporative Emission System- Canister Clogging

Trouble Code Conditions: Ignition voltage 10-16 volts. Barometric pressure 72kpa. Engine run time, one second.

Possible Causes:



Faulty canister close valve
 
Clogging of canister air filter
 
Open in ground harness of FTPS
 
Faulty PCM
 

 
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