Nissan Car Altima & Sentra 1999-06

2.0L L4 - Std 1

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2.0L L4 - Std

Trouble Code: P0000



No Self-Diagnostic Failure Detected

Possible Causes:



This trouble code indicates there are no codes in any other onboard controllers on this vehicle!
 

Trouble Code: P0100



Mass Airflow Sensor Circuit Malfunction

Possible Causes:



Air Intake leaks located after the MAF sensor assembly
 
MAF sensor signal circuit is open or shorted to ground
 
MAF sensor signal circuit is shorted to VREF or system power
 
MAF sensor has failed
 
PCM has failed
 

Trouble Code: P0105



Absolute Pressure Sensor Circuit Malfunction

Possible Causes:



Absolute pressure sensor signal circuit open, shorted to ground
 
Absolute pressure sensor signal circuit shorted to VREF
 
Absolute pressure sensor is damaged or has failed
 
PCM has failed
 

Trouble Code: P0110



Intake Air Temperature Sensor Range/Performance

Possible Causes:



IAT sensor signal circuit open or shorted to ground
 
IAT sensor signal circuit shorted to VREF or to system power
 
IAT sensor is damaged or has failed (out of calibration)
 
PCM has failed
 

Trouble Code: P0115



Engine Coolant Temperature Sensor Circuit Malfunction

Possible Causes:



ECT sensor signal circuit open or shorted to ground
 
ECT sensor signal circuit shorted to VREF or to system power
 
ECT sensor is damaged or has failed (out of calibration)
 
PCM has failed
 

Trouble Code: P0120



Throttle Position Sensor Circuit Malfunction

Possible Causes:



TP sensor signal circuit open or shorted to ground
 
TP sensor signal circuit shorted to VREF or to system power
 
TP sensor is damaged or has failed (perform a sweep test)
 
PCM has failed
 

Trouble Code: P0125



ECT Sensor Excessive Time To Enter Closed Loop

Possible Causes:



Check the operation of the thermostat (it may be stuck open)
 
ECT sensor signal circuit has high resistance
 
ECT sensor is contaminated, damaged or out-of-calibration
 
Inspect for low coolant level or an incorrect coolant mixture
 
PCM has failed
 

Trouble Code: P0130



HO2S-11 (Bank 1 Sensor 1) Closed Loop Fuel Control

Possible Causes:



HO2S signal circuit is open or shorted to ground
 
HO2S is damaged or has failed
 
PCM has failed
 

Trouble Code: P0131



HO2S-11 (Bank 1 Sensor 1) Circuit Low Input (Lean Shift)

Possible Causes:



Low fuel pressure, fuel filter restricted or fuel injectors plugged
 
HO2S may be contaminated or it has failed
 
HO2S heater is damaged or has failed
 
PCM has failed
 

Trouble Code: P0132



HO2S-11 (Bank 1 Sensor 1) Circuit High Input (Rich Shift)

Possible Causes:



Fuel pressure regulator leaking or fuel injectors leaking
 
HO2S may be contaminated or it has failed
 
HO2S heater is damaged or has failed
 
PCM has failed
 

Trouble Code: P0133



HO2S-11 (Bank 1 Sensor 1) Slow Response

Possible Causes:



HO2S signal circuit is open or shorted to ground
 
HO2S element is contaminated, or HO2S heater has failed
 
Intake air leaks, exhaust manifold leaks or PCV system leaks
 
MAF sensor out of calibration (it may be dirty or contaminated)
 

Trouble Code: P0134



HO2S-11 (Bank 1 Sensor 1) Insufficient Activity Detected

Possible Causes:



HO2S element is contaminated
 
HO2S heater is damaged or has failed
 
HO2S signal circuit is open or shorted to ground
 
HO2S is damaged or has failed
 
TSB 02-002 (1/02) contains information related to this code
 

Trouble Code: P0135



HO2S-11 (Bank 1 Sensor 1) Heater Circuit Malfunction

Possible Causes:



HO2S heater control circuit is open or shorted to ground
 
HO2S heater control circuit is shorted to power
 
HO2S heater is damaged or has failed
 
PCM has failed
 
TSB 02-002 (1/02) contains information related to this code
 

Trouble Code: P0136



HO2S-12 (Bank 1 Sensor 2) Closed Loop Fuel Control

Possible Causes:



HO2S signal circuit is open or shorted to ground
 
HO2S is damaged or has failed
 
PCM has failed
 

Trouble Code: P0137



HO2S-12 (Bank 1 Sensor 2) Circuit Low Input (Lean Shift)

Possible Causes:



Low fuel pressure, fuel filter restricted or fuel injectors plugged
 
HO2S may be contaminated or it has failed
 
HO2S heater is damaged or has failed
 
PCM has failed
 

Trouble Code: P0138



HO2S-12 (Bank 1 Sensor 2) Circuit High Input (Rich Shift)

Possible Causes:



Fuel pressure regulator leaking or fuel injectors leaking
 
HO2S may be contaminated or it has failed
 
HO2S heater is damaged or has failed
 
PCM has failed
 
TSB 01-016 (9/01) contains information related to this code
 

Trouble Code: P0139



HO2S-12 (Bank 1 Sensor 2) Slow Response

Possible Causes:



HO2S signal circuit is open or shorted to ground
 
HO2S element is contaminated, or HO2S heater has failed
 
Intake air leaks, exhaust manifold leaks or PCV system leaks
 
MAF sensor out of calibration (it may be dirty or contaminated)
 

Trouble Code: P0140



HO2S-12 (Bank 1 Sensor 2) Insufficient Activity Detected

Possible Causes:



Air leaks in the intake manifold or exhaust manifold or pipes
 
HO2S contaminated with wrong fuel, has deteriorated or failed
 
HO2S signal circuit is open or shorted to ground (intermittent)
 
PCM has failed
 
TSB 01-016 (9/01) contains information related to this code
 

Trouble Code: P0141



HO2S-12 (Bank 1 Sensor 2) Heater Circuit Malfunction

Possible Causes:



HO2S heater control circuit is open or shorted to ground
 
HO2S heater control circuit is shorted to power
 
HO2S heater is damaged or has failed
 
PCM has failed
 

Trouble Code: P0143



HO2S-13 (Bank 1 Sensor 3) Minimum Voltage Monitoring

Possible Causes:



Low fuel pressure, fuel filter restricted or fuel injectors plugged
 
HO2S may be contaminated or it has failed
 
HO2S heater is damaged or has failed
 
PCM has failed
 

Trouble Code: P0144



HO2S-13 (Bank 1 Sensor 3) Maximum Voltage Monitoring

Possible Causes:



Fuel pressure regulator leaking or fuel injectors leaking
 
HO2S may be contaminated or it has failed
 
HO2S heater is damaged or has failed
 
PCM has failed
 

Trouble Code: P0145



HO2S-13 (Bank 1 Sensor 3) Response Monitoring

Possible Causes:



HO2S signal circuit is open or shorted to ground
 
HO2S element is contaminated, or HO2S heater has failed
 
Intake air leaks, exhaust manifold leaks or PCV system leaks
 
MAF sensor out of calibration (it may be dirty or contaminated)
 

Trouble Code: P0146



HO2S-13 (Bank 1 Sensor 3) Circuit High Input

Possible Causes:



Fuel supply system is too rich (fuel injector or regulator leaking)
 
HO2S is contaminated, damaged or has failed
 
HO2S signal circuit is open or shorted to system power (B+)
 
PCM has failed
 

Trouble Code: P0147



HO2S-13 (Bank 1 Sensor 3) Circuit High Input

Possible Causes:



HO2S heater control circuit is shorted to ground
 
HO2S heater control circuit is shorted to power
 
HO2S heater is damaged or has failed (due to an internal short)
 
PCM has failed
 

Trouble Code: P0171



Fuel Trim Lean (Bank 1)

Possible Causes:



Air leaks after the MAF sensor, or in the EGR or PCV system
 
Base engine "mechanical" fault affecting one or more cylinders
 
Exhaust leaks before or near where the front HO2S is mounted
 
Fuel control sensor is out of calibration (i.e., ECT, IAT or MAP)
 
Fuel delivery system supplying too little fuel during cruise or idle periods (e.g., faulty fuel pump or dirty, restricted fuel filter)
 
Fuel injector (one or more) dirty or pressure regulator has failed
 
HO2S is contaminated, deteriorated or it has failed
 
Vehicle driven low on fuel or until it ran out of fuel
 

Trouble Code: P0172



Fuel Trim Rich (Bank 1)

Possible Causes:



Base engine "mechanical" fault affecting one or more cylinders
 
EVAP system component has failed or canister fuel saturated
 
Fuel control sensor is out of calibration (i.e., ECT, IAT or MAP)
 
Fuel delivery system supplying too much fuel during cruise or idle periods (e.g., faulty fuel pump, or faulty pressure regulator)
 
Fuel injector(s) is leaking or stuck partially open (one or more)
 
HO2S is contaminated, deteriorated or it has failed
 

Trouble Code: P0180



Fuel Tank Temperature Sensor Circuit Malfunction

Possible Causes:



Fuel tank temperature sensor signal open or shorted to ground
 
Fuel tank temperature sensor is damaged or has failed
 
PCM has failed
 

Trouble Code: P0217



Engine Over-Temperature

Possible Causes:



Cooling fan control circuit open or shorted to ground
 
Cooling system problems (low coolant, thermostat closed)
 
Blocked air passages at front of the vehicle (recent damage-)
 
Blocked or restricted radiator passages
 

Trouble Code: P0300



Multiple Misfire Detected

Possible Causes:



Air leak in the intake manifold, or in the EGR or PCM system
 
Base engine problem affecting two or more cylinders
 
CMP or CKP sensor signals erratic or out of phase
 
EGR valve stuck open, or EVAP purge system has failed
 
Fuel delivery component fault that affects more than 1 cylinder (i.e., contaminated, dirty or sticking fuel injectors)
 
Ignition system problem affecting two or more cylinders
 
Vehicle driven while quite low or until it ran out of fuel
 

Trouble Code: P0301



Cylinder 1 Misfire Detected

Possible Causes:



Air leak in the intake manifold, or in the EGR or PCM system
 
Base engine mechanical fault that affects only one cylinder
 
Fuel delivery component fault that affects only one cylinder (i.e., a contaminated, dirty or sticking fuel injector)
 
Ignition system problem (coil or plug) that affects one cylinder
 
Vehicle driven while quite low or until it ran out of fuel
 

Trouble Code: P0302



Cylinder 2 Misfire Detected

Possible Causes:



Air leak in the intake manifold, or in the EGR or PCM system
 
Base engine mechanical fault that affects only one cylinder
 
Fuel delivery component fault that affects only one cylinder (i.e., a contaminated, dirty or sticking fuel injector)
 
Ignition system problem (coil or plug) that affects one cylinder
 
Vehicle driven while quite low or until it ran out of fuel
 

Trouble Code: P0303



Cylinder 3 Misfire Detected

Possible Causes:



Air leak in the intake manifold, or in the EGR or PCM system
 
Base engine mechanical fault that affects only one cylinder
 
Fuel delivery component fault that affects only one cylinder (i.e., a contaminated, dirty or sticking fuel injector)
 
Ignition system problem (coil or plug) that affects one cylinder
 
Vehicle driven while quite low or until it ran out of fuel
 

Trouble Code: P0304



Cylinder 4 Misfire Detected

Possible Causes:



Air leak in the intake manifold, or in the EGR or PCM system
 
Base engine mechanical fault that affects only one cylinder
 
Fuel delivery component fault that affects only one cylinder (i.e., a contaminated, dirty or sticking fuel injector)
 
Ignition system problem (coil or plug) that affects one cylinder
 
Vehicle driven while quite low or until it ran out of fuel
 

Trouble Code: P0325



Knock Sensor Circuit Malfunction (Bank 1)

Possible Causes:



Knock sensor signal circuit is open or shorted to ground
 
Knock sensor signal circuit is shorted to VREF or system power
 
Knock sensor is damaged or has failed
 
PCM has failed
 

Trouble Code: P0335



Crankshaft Position Sensor Circuit Malfunction

Possible Causes:



CKP sensor signal circuit is open or shorted to ground
 
CKP sensor signal is shorted to VREF or system power
 
CKP sensor is damaged or has failed
 
PCM has failed
 

Trouble Code: P0340



Camshaft Position Sensor Circuit Malfunction

Possible Causes:



CMP sensor signal circuit is open or shorted to ground
 
CMP sensor signal is shorted to VREF or system power
 
CMP sensor is damaged or has failed
 
PCM has failed
 

Trouble Code: P0400



EGR System Recirculation Flow

Possible Causes:



EGR gas temperature sensor is damaged or has failed
 
EGR valve is stuck partially open or closed
 
Dual EGR/EVAP solenoid is damaged or has failed
 
Exhaust system is damaged or has collapsed
 
PCM has failed
 

Trouble Code: P0402



EGRC-BPT Valve Function Conditions

Possible Causes:



EGRC-BPT solenoid control circuit is open or shorted to ground
 
EGRC-BPT valve vacuum hose is clogged or disconnected
 
Orifice missing in vacuum hose between EGRC-BPT valve and the EGRC solenoid valve
 
Exhaust system is damaged or has collapsed
 

Trouble Code: P0403



EGR Volume Control Valve Circuit Malfunction

Possible Causes:



EGR volume control valve circuit open or shorted to ground
 
EGR volume control valve circuit shorted to system power (B+)
 
EGR volume control valve is damaged or has failed
 
PCM has failed
 

Trouble Code: P0420



Catalyst Efficiency Below Normal (Bank 1)

Possible Causes:



Air leaks at the exhaust manifold or in the exhaust pipes
 
Catalytic converter is damaged, contaminated or has failed
 
Front HO2S or rear HO2S is contaminated with fuel or moisture
 
Front HO2S and/or the rear HO2S is loose in the mounting hole
 
Front HO2S older (aged) than the rear HO2S (HO2S is lazy)
 
TSB 01-068B (03/01) contains information related to this code
 

 
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