Sierra, Silverado 2006-2007

5.3L V8 VIN Z Std 2

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Trouble Code: P0137



HO2S Circuit Low Voltage Bank 1 Sensor 2

Trouble Code: P0138



HO2S Circuit High Voltage Bank 1 Sensor 2

Trouble Code: P0140



HO2S Circuit Insufficient Activity Bank 1 Sensor 2

Trouble Code: P0141



HO2S Heater Performance Bank 1 Sensor 2

Trouble Code: P0151



HO2S Circuit Low Voltage Bank 2 Sensor 1

Trouble Code: P0152



HO2S Circuit High Voltage Bank 2 Sensor 1

Trouble Code: P0153



HO2S Slow Response Bank 2 Sensor 1

Trouble Code: P0154



HO2S Circuit Insufficient Activity Bank 2 Sensor 1

Trouble Code: P0155



HO2S Heater Performance Bank 2 Sensor 1

Trouble Code: P0156



HO2S Performance Bank 2 Sensor 2

Trouble Code: P0157



HO2S Circuit Low Voltage Bank 2 Sensor 2

Trouble Code: P0158



HO2S Circuit High Voltage Bank 2 Sensor 2

Trouble Code: P0160



HO2S Circuit Insufficient Activity Bank 2 Sensor 2

Trouble Code: P0161



HO2S Heater Performance Bank 2 Sensor 2

Trouble Code: P0168



Engine Fuel Over-Temperature

Trouble Code: P0171



Fuel Trim System Lean Bank 1

Trouble Code: P0171



Fuel Trim System Lean Bank 1

Possible Causes:



The 5.3L engine, VIN code Z, may use either 100% pure unleaded fuel or unleaded fuel containing up to 85% ethanol, or E85. Refer to Fuel System Description . This DTC can set if the learned alcohol content is not within 15% of the actual alcohol content in the fuel tank. Refer to Alcohol/Contaminants-in-Fuel Diagnosis .
 
Excessive resistance in the fuel injector control and/or the ignition 1 voltage circuits may cause the following symptoms:

Misfire
 
Rough idle Refer to DTC P0200 .
 

The system may become lean if an injector is not supplying enough fuel.A lean condition could be present during high fuel demand.Review the Failure Records with a scan tool. If an intermittent condition is suspected, refer to Testing for Intermittent Conditions and Poor Connections .
 

Trouble Code: P0172



Fuel Trim System Rich Bank 1

Trouble Code: P0172



Fuel Trim System Rich Bank 1

Possible Causes:



The 5.3L engine, VIN code Z, may use either 100% pure unleaded fuel or unleaded fuel containing up to 85% ethanol, or E85. Refer to Fuel System Description . This DTC can set if the learned alcohol content is not within 15% of the actual alcohol content in the fuel tank. Refer to Alcohol/Contaminants-in-Fuel Diagnosis .
 
Fuel contamination, such as water, will effect fuel trim.
 
A malfunctioning MAF sensor can cause a rich condition and set this DTC. Refer to DTC P0101 .
 
Review Failure Records with a scan tool. If an intermittent condition is suspected , refer to Testing for Intermittent Conditions and Poor Connections .
 

Trouble Code: P0174



Fuel Trim System Lean Bank 2

Trouble Code: P0174



Fuel Trim System Lean Bank 2

Possible Causes:



The 5.3L engine, VIN code Z, may use either 100% pure unleaded fuel or unleaded fuel containing up to 85% ethanol, or E85. Refer to Fuel System Description . This DTC can set if the learned alcohol content is not within 15% of the actual alcohol content in the fuel tank. Refer to Alcohol/Contaminants-in-Fuel Diagnosis .
 
Excessive resistance in the fuel injector control and/or the ignition 1 voltage circuits may cause the following symptoms:

Misfire
 
Rough idle Refer to DTC P0200 .
 

The system may become lean if an injector is not supplying enough fuel.A lean condition could be present during high fuel demand.Review the Failure Records with a scan tool. If an intermittent condition is suspected, refer to Testing for Intermittent Conditions and Poor Connections .
 

Trouble Code: P0175



Fuel Trim System Rich Bank 2

Trouble Code: P0175



Fuel Trim System Rich Bank 2

Possible Causes:



The 5.3L engine, VIN code Z, may use either 100% pure unleaded fuel or unleaded fuel containing up to 85% ethanol, or E85. Refer to Fuel System Description . This DTC can set if the learned alcohol content is not within 15% of the actual alcohol content in the fuel tank. Refer to Alcohol/Contaminants-in-Fuel Diagnosis .
 
Fuel contamination, such as water, will effect fuel trim.
 
A malfunctioning MAF sensor can cause a rich condition and set this DTC. Refer to DTC P0101 .
 
Review Failure Records with a scan tool. If an intermittent condition is suspected , refer to Testing for Intermittent Conditions and Poor Connections .
 

Trouble Code: P0181



Fuel Temperature Sensor Performance

Trouble Code: P0182



Fuel Temperature Sensor Circuit Low Voltage

Possible Causes:



A short to a separate 5-volt source may set a DTC P0183.
 
A skewed sensor could result in poor driveability concerns.
 

Trouble Code: P0183



Fuel Temperature Sensor Circuit High Voltage

Possible Causes:



A short to a separate 5-volt source may set a DTC P0183.
 
A skewed sensor could result in poor driveability concerns.
 

Trouble Code: P0191



Fuel Rail Pressure (FRP) Sensor Performance

Trouble Code: P0192



Fuel Rail Pressure (FRP) Sensor Circuit Low Voltage

Trouble Code: P0193



Fuel Rail Pressure (FRP) Sensor Circuit High Voltage

Trouble Code: P0200



Injector Control Circuit

Possible Causes:



Performing the Fuel Injector Coil Test may help to isolate an intermittent condition. Refer to Fuel Injector Coil Test .
 
For an intermittent condition, refer to Testing for Intermittent Conditions and Poor Connections .
 

Trouble Code: P0201



Fuel Injector 1 Control Circuit

Trouble Code: P0202



Fuel Injector 2 Control Circuit

Trouble Code: P0203



Fuel Injector 3 Control Circuit

Trouble Code: P0204



Fuel Injector 4 Control Circuit

Trouble Code: P0205



Fuel Injector 5 Control Circuit

Trouble Code: P0206



Fuel Injector 6 Control Circuit

Trouble Code: P0207



Fuel Injector 7 Control Circuit

Trouble Code: P0208



Fuel Injector 8 Control Circuit

Trouble Code: P0220



Throttle Position (TP) Sensor 2 Circuit

Possible Causes:



Inspect the TAC module connectors for signs of water intrusion. If water intrusion occurs, multiple DTCs may set without any circuit or component conditions found during diagnostic testing.
 
When the TAC module detects a condition within the TAC system, more than one TAC system related DTC may set. This is due to the many redundant tests run continuously on this system. Locating and repairing one individual condition may correct more than one DTC. Disconnecting components during testing may set additional DTCs. Remember this if you review the stored information in Capture Info.
 
If this DTC is determined to be intermittent, refer to Testing for Intermittent Conditions and Poor Connections .
 

Trouble Code: P0230



Fuel Pump Relay Control Circuit

 
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