Silverado 2008

4.3L V6 VIN X Auto 14

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Trouble Code: P02A5



Injector 3 Leak

Possible Causes:



Test or replace the appropriate fuel injector
 

Trouble Code: P02A9



Injector 4 Leak

Possible Causes:



Test or replace the appropriate fuel injector
 

Trouble Code: P02AD



Injector 6 Leak

Possible Causes:



Test or replace the appropriate fuel injector
 

Trouble Code: P02B1



Multiple Engine Misfire Detected

Possible Causes:



Base engine mechanical fault that affects one or more cylinders
 
Fuel metering fault (high fuel pressure or fuel contaminated)
 
EVAP system problem or the EVAP canister is fuel saturated
 
EGR valve is stuck open or the PCV system has a vacuum leak
 
Ignition system fault (a coil) that affects more than one cylinder
 
MAF sensor contamination (it can cause a very lean condition)
 

Trouble Code: P02B5



Injector 7 Leak

Possible Causes:



The fuel balancing rate for a cylinder is less than -7.0 mm-;.
 

Trouble Code: P02B9



Injector 8 Leak

Possible Causes:



The fuel balancing rate for a cylinder is less than -7.0 mm-;.
 

Trouble Code: P02E0



Diesel Intake Air (IA) Flow Control Circuit

Possible Causes:



The IA valve duty cycle is greater than 10 percent.
 
The IA valve control circuit is less than 25 mA.
 

Trouble Code: P02E7



Diesel Intake Air (IA) Flow Position Sensor Performance

Possible Causes:



The difference between the desired IA Valve position and the actual IA Valve position is more than 3 percent for 10 seconds.
 

Trouble Code: P02E8



Diesel Intake Air (IA) Flow Position Sensor Circuit Low Voltage

Possible Causes:



P02E8
 
The IAF valve position is less than 0.102 volt for 3 seconds.
 

Trouble Code: P02E9



Diesel Intake Air (IA) Flow Position Sensor Circuit High Voltage

Possible Causes:



P02E9
 
The IAF valve position is greater than 4.75 volts for 3 seconds.
 

Trouble Code: P0300



Multiple Engine Misfire Detected

Possible Causes:



Base engine mechanical fault that affects one or more cylinders
 
Fuel metering fault that affects more than one cylinder
 
Fuel pressure too low or too high, fuel supply contaminated
 
EVAP system problem or the EVAP canister is fuel saturated
 
EGR valve is stuck open or the PCV system has a vacuum leak
 
IC control circuit is shorted to ground (an intermittent fault)
 
Ignition system fault (a coil) that affects more than one cylinder
 
MAF sensor contamination (it can cause a very lean condition)
 

Trouble Code: P0301



Cylinder 1 Misfire Detected

Possible Causes:



Air leak in the intake manifold, or in the EGR or PCV system
 
Base engine mechanical fault that affects only Cylinder 1
 
Fuel delivery component fault that affects only Cylinder 1 (i.e., a contaminated, dirty or sticking fuel injector)
 
Ignition system problem (coil, plug) that affects only Cylinder 1
 

Trouble Code: P0302



Cylinder 2 Misfire Detected

Possible Causes:



Air leak in the intake manifold, or in the EGR or PCV system
 
Base engine mechanical fault that affects only Cylinder 2
 
Fuel delivery component fault that affects only Cylinder 2 (i.e., a contaminated, dirty or sticking fuel injector)
 
Ignition system problem (coil, plug) that affects only Cylinder 2
 

Trouble Code: P0303



Cylinder 3 Misfire Detected

Possible Causes:



Air leak in the intake manifold, or in the EGR or PCV system
 
Base engine mechanical fault that affects only Cylinder 3
 
Fuel delivery component fault that affects only Cylinder 3 (i.e., a contaminated, dirty or sticking fuel injector)
 
Ignition system problem (coil, plug) that affects only Cylinder 3
 

Trouble Code: P0304



Cylinder 4 Misfire Detected

Possible Causes:



Air leak in the intake manifold, or in the EGR or PCV system
 
Base engine mechanical fault that affects only Cylinder 4
 
Fuel delivery component fault that affects only Cylinder 4 (i.e., a contaminated, dirty or sticking fuel injector)
 
Ignition system problem (coil, plug) that affects only Cylinder 4
 

Trouble Code: P0305



Cylinder 5 Misfire Detected

Possible Causes:



Air leak in the intake manifold, or in the EGR or PCV system
 
Base engine mechanical fault that affects only Cylinder 5
 
Fuel delivery component fault that affects only Cylinder 5 (i.e., a contaminated, dirty or sticking fuel injector)
 
Ignition system problem (coil, plug) that affects only Cylinder 5
 

Trouble Code: P0306



Cylinder 6 Misfire Detected

Possible Causes:



Air leak in the intake manifold, or in the EGR or PCV system
 
Base engine mechanical fault that affects only Cylinder 6
 
Fuel delivery component fault that affects only Cylinder 6 (i.e., a contaminated, dirty or sticking fuel injector)
 
Ignition system problem (coil, plug) that affects only Cylinder 6
 

Trouble Code: P0307



Cylinder 7 Misfire Detected

Possible Causes:



130 misfire events have occurred.
 

Trouble Code: P0308



Cylinder 8 Misfire Detected

Possible Causes:



DTC P0301, P0302, P0303, P0304, P0305, P0306, P0307, or P0308
 
The ECM is detecting a crankshaft speed change indicating a single cylinder misfire is occurring that exceeds mandated emission level standards or is at catalytic converter damaging levels.
 

Trouble Code: P0308



Cylinder 8 Misfire Detected

Possible Causes:



130 misfire events have occurred.
 

Trouble Code: P0315



Crankshaft Position Sensor Variation Not Learned

Possible Causes:



CKP sensor signal circuit has an interference condition (EMI)
 
Crankshaft main bearings worn or reluctor wheel is damaged
 
Crankshaft run-out is excessive or the crankshaft is damaged
 
ECT sensor not within the conditions for running the code test
 
Ignition switch is on, but the battery has insufficient voltage
 
ECM power disconnected with key on (erases learned values)
 
Debris that passes between the CKP sensor and reluctor wheel
 

Trouble Code: P0324



Knock Sensor (KS) Module Performance

Possible Causes:



Knock sensor signal circuit is open, shorted to ground or power
 
Knock sensor ground circuit is open (i.e., not mounted properly)
 
Knock sensor is damaged or has failed
 
ECM has failed.
 

Trouble Code: P0325



Knock Sensor (KS) Circuit

Possible Causes:



Knock sensor signal circuit is open, shorted to ground or power
 
Knock sensor ground circuit is open (i.e., not mounted properly)
 
Knock sensor is damaged or has failed
 
ECM has failed.
 

Trouble Code: P0326



Knock Sensor (KS) System Performance (Bank 1)

Possible Causes:



Knock sensor signal circuit is open, shorted to ground or power
 
Knock sensor ground circuit is open (check for proper torque)
 
Knock sensor is damaged or has failed
 
ECM has failed
 

Trouble Code: P0327



Knock Sensor Circuit Low Input (Bank 1)

Possible Causes:



Knock sensor signal circuit is open, shorted to ground or power
 
Knock sensor ground circuit is open (check for proper torque)
 
Knock sensor is damaged or has failed
 
ECM has failed
 

Trouble Code: P0327



Knock Sensor (KS) System Performance (Bank 1)

Possible Causes:



Knock sensor signal circuit is open, shorted to ground or power
 
Knock sensor ground circuit is open (check for proper torque)
 
Knock sensor is damaged or has failed
 
ECM has failed
 

Trouble Code: P0328



Knock Sensor Circuit Low Input (Bank 1)

Possible Causes:



Knock sensor signal circuit is open, shorted to ground or power
 
Knock sensor ground circuit is open (check for proper torque)
 
Knock sensor is damaged or it has failed
 
ECM has failed
 

Trouble Code: P0328



Knock Sensor (KS) System Performance (Bank 1)

Possible Causes:



Knock sensor signal circuit is open, shorted to ground or power
 
Knock sensor ground circuit is open (check for proper torque)
 
Knock sensor is damaged or has failed
 
ECM has failed
 

Trouble Code: P0330



Knock Sensor (KS) System Performance (Bank 1)

Possible Causes:



Knock sensor signal circuit is open, shorted to ground or power
 
Knock sensor ground circuit is open (check for proper torque)
 
Knock sensor is damaged or has failed
 
ECM has failed
 

Trouble Code: P0331



Knock Sensor (KS) Circuit Low Voltage (Bank 2)

Possible Causes:



KS circuits A and B for a short to ground or an open/high resistance
 
KS circuits A and B for a short to voltage
 
KS sensor has failed
 
ECM has failed
 

Trouble Code: P0332



Knock Sensor Circuit Malfunction (Bank 2)

Possible Causes:



Knock sensor signal circuit is open, shorted to ground or power
 
Knock sensor ground circuit is open (i.e., not mounted properly)
 
Knock sensor is damaged or has failed
 
On modules with an integrated sensor, clear the codes and retest for codes. If the same code resets, the ECM has failed.
 

Trouble Code: P0332



Knock Sensor (KS) System Performance (Bank 1)

Possible Causes:



Knock sensor signal circuit is open, shorted to ground or power
 
Knock sensor ground circuit is open (check for proper torque)
 
Knock sensor is damaged or has failed
 
ECM has failed
 

Trouble Code: P0333



Crankshaft Position (CKP) Sensor Circuit

Possible Causes:



CKP sensor low reference circuit for an open/high resistance
 
CKP sensor 5-volt reference circuit for an open/high resistance or short to ground
 
CKP sensor 5-volt reference circuit for a short to voltage
 
CKP sensor signal circuit for an open/high resistance or short to ground
 
CKP sensor signal circuit for a short to voltage
 
CKP sensor has failed
 
ECM has failed
 

Trouble Code: P0333



Knock Sensor (KS) System Performance (Bank 1)

Possible Causes:



Knock sensor signal circuit is open, shorted to ground or power
 
Knock sensor ground circuit is open (check for proper torque)
 
Knock sensor is damaged or has failed
 
ECM has failed
 

Trouble Code: P0335



Crankshaft Position Sensor Circuit Malfunction

Possible Causes:



CKP sensor signal circuit is open or shorted to ground
 
CKP sensor VREF circuit is open between the sensor and ECM
 
CKP sensor ground (Low Reference) circuit is open
 
CKP sensor is damaged or it failed (check crankshaft reluctor)
 
ECM has failed
 

Trouble Code: P0335



CKP Sensor Circuit Malfunction

Possible Causes:



CKP sensor signal circuit is open or shorted to ground
 
CKP sensor ground (low reference) circuit is open
 
CKP sensor power circuit is open between sensor and the ECM
 
Crankshaft reluctor wheel is damaged or improper installation
 
ECM has failed
 

Trouble Code: P0335



Crankshaft Position (CKP) Sensor Circuit

Possible Causes:



Physical damage to the CKP sensor or the reluctor wheel
 
5 volt reference circuit for a short to ground or for an open/high resistance.
 
5.volt reference circuit for a short to voltage
 
Short to voltage in the signal circuit
 
Short to ground or an open/high resistance in the signal circuit
 
CKP has failed
 
ECM has failed
 

Trouble Code: P0336



Crankshaft Reference 24X Circuit Malfunction

Possible Causes:



CKP sensor signal circuit is open or shorted to ground
 
CKP sensor ground (Low Reference) circuit is open
 
CKP sensor is damaged or it failed (check crankshaft reluctor)
 
ECM has failed
 

Trouble Code: P0336



Crankshaft Position (CKP) Sensor Performance

Possible Causes:



Physical damage to the CKP sensor or the reluctor wheel
 
5 volt reference circuit for a short to ground or for an open/high resistance.
 
5.volt reference circuit for a short to voltage
 
Short to voltage in the signal circuit
 
Short to ground or an open/high resistance in the signal circuit
 
CKP has failed
 
ECM has failed
 

Trouble Code: P0338



Camshaft Position (CMP) Sensor Circuit

Possible Causes:



CMP sensor 5-volt reference circuit for an open/high resistance or short to ground
 
CMP sensor 5-volt reference circuit for a short to voltage
 
CMP sensor signal circuit for an open/high resistance or short to ground
 
CMP sensor signal circuit for a short to voltage
 
CKP sensor has failed
 
ECM has failed
 

 
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