Infiniti Car 1998-05

3.0L V6 VIN C Std 1

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3.0L V6 VIN C Std

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 a high resistance condition
 
ECT sensor is damaged or has failed (out of calibration)
 

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 connector is damaged or loose (intermittent open circuit)
 
HO2S signal circuit is open or shorted to power
 
HO2S is contaminated or it 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 heater is damaged or has failed
 
HO2S signal circuit is open or shorted to ground
 
HO2S is damaged, has fuel contamination or has failed
 
TSB 02-024 (5/02) contains information related to this code
 

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
 

Trouble Code: P0153



HO2S-21 (Bank 2 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: P0154



HO2S-21 (Bank 2 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 it has failed
 

Trouble Code: P0158



HO2S-22 (Bank 2 Sensor 2) Circuit High Input (Rich 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
 
TSB 02-008 (5/02) contains information related to this code
 

Trouble Code: P0160



HO2S-22 (Bank 2 Sensor 2) 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 it has failed
 
TSB 02-008 (5/02) contains information related to this code
 

Trouble Code: P0300



Multiple Misfire Detected:

Possible Causes:



Base engine problem that affects 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 two or more cylinders (e.g., a contaminated, dirty or sticking fuel injector)
 
Ignition system problem that affects two or more cylinders
 
Vehicle driven while quite low on fuel (less than 1/8 of a tank)
 

Trouble Code: P0301



Cylinder 1 Misfire Detected:

Possible Causes:



Base engine mechanical problem that affects only Cylinder 1
 
EGR valve stuck open, or EVAP purge system has failed
 
Fuel delivery component fault that affects only Cylinder 1 (e.g., a contaminated, dirty or sticking fuel injector)
 
Ignition system fault (Coil or Plug) that affects only Cylinder 1
 

Trouble Code: P0302



Cylinder 2 Misfire Detected:

Possible Causes:



Base engine mechanical problem that affects only Cylinder 2
 
EGR valve stuck open, or EVAP purge system has failed
 
Fuel delivery component fault that affects only Cylinder 2 (e.g., a contaminated, dirty or sticking fuel injector)
 
Ignition system fault (Coil or Plug) that affects only Cylinder 2
 

Trouble Code: P0303



Cylinder 3 Misfire Detected:

Possible Causes:



Base engine mechanical problem that affects only Cylinder 3
 
EGR valve stuck open, or EVAP purge system has failed
 
Fuel delivery component fault that affects only Cylinder 3 (e.g., a contaminated, dirty or sticking fuel injector)
 
Ignition system fault (Coil or Plug) that affects only Cylinder 3
 

Trouble Code: P0304



Cylinder 4 Misfire Detected:

Possible Causes:



Base engine mechanical problem that affects only Cylinder4
 
EGR valve stuck open, or EVAP purge system has failed
 
Fuel delivery component fault that affects only Cylinder 4 (e.g., a contaminated, dirty or sticking fuel injector)
 
Ignition system fault (Coil or Plug) that affects only Cylinder 4
 

Trouble Code: P0305



Cylinder 5 Misfire Detected:

Possible Causes:



Base engine mechanical problem that affects only Cylinder 5
 
EGR valve stuck open, or EVAP purge system has failed
 
Fuel delivery component fault that affects only Cylinder 5 (e.g., a contaminated, dirty or sticking fuel injector)
 
Ignition system fault (Coil or Plug) that affects only Cylinder 5
 

Trouble Code: P0306



Cylinder 6 Misfire Detected:

Possible Causes:



Base engine mechanical problem that affects only Cylinder 6
 
EGR valve stuck open, or EVAP purge system has failed
 
Fuel delivery component fault that affects only Cylinder 6 (e.g., a contaminated, dirty or sticking fuel injector)
 
Ignition system fault (Coil or Plug) that affects only Cylinder 6
 

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: P0420



Catalyst Efficiency Below Normal (Bank 1):

Possible Causes:



Air leaks at the exhaust manifold or in the exhaust pipes
 
Catalytic converter is contaminated, damaged or has failed
 
Continuous engine misfire conditions, or low ignition coil output
 
Front HO2S is older (aged) than the rear HO2S (HO2S is lazy)
 
Front HO2S or rear HO2S is contaminated with fuel or moisture
 
Rear HO2S is loose in the mounting hole (check it for a leak)
 

Trouble Code: P0430



Catalyst Efficiency Below Normal (Bank 2):

Possible Causes:



Air leaks at the exhaust manifold or in the exhaust pipes
 
Catalytic converter is contaminated, damaged or has failed
 
Continuous engine misfire conditions, or low ignition coil output
 
Front HO2S is older (aged) than the rear HO2S (HO2S is lazy)
 
Front HO2S or rear HO2S is contaminated with fuel or moisture
 
Rear HO2S is loose in the mounting hole (check it for a leak)
 

Trouble Code: P0440



EVAP System Small Leak (0.040") Detected:

Possible Causes:



EVAP purge solenoid is damaged or has failed
 
EVAP emission canister clogged or restricted
 
Fuel tank cap loose, damaged or missing, or vacuum line is off
 
TSB 00-046 (7/00) contains information related to this code
 

Trouble Code: P0443



EVAP Canister Purge Solenoid Circuit Malfunction:

Possible Causes:



Purge solenoid connector is damaged/loose (intermittent fault)
 
Purge solenoid control circuit open, shorted to ground or power
 
Purge solenoid is damaged or has failed
 
PCM has failed
 
TSB 00-046 (7/00) contains information related to this code
 

Trouble Code: P0450



EVAP Pressure Sensor Circuit Malfunction:

Possible Causes:



EVAP pressure sensor circuit is open, shorted to ground or B+
 
EVAP pressure sensor is damaged or has failed
 
PCM is damaged
 
TSB 00-046 (7/00) contains information related to this code
 

Trouble Code: P0456



EVAP System Very Small Leak (0.020") Detected:

Possible Causes:



EVAP control system pressure sensor is damaged or has failed
 
EVAP purge solenoid is damaged or has failed
 
EVAP canister vent control valve is damaged or has failed
 
Fuel tank cap not tightened properly or the wrong part number
 
Fuel tank temperature sensor is damaged or has failed
 
Fuel tank vacuum relief valve is damaged or has failed
 
Very small leak in the EVAP canister or in the fuel tank area
 
ORVR system is damaged or has a small leak in a component
 
Refueling control valve is damaged or has failed
 
TSB 00-046 (7/00) contains information related to this code
 

Trouble Code: P0500



Vehicle Speed Sensor Circuit Malfunction:

Possible Causes:



ABS/TCS control unit is damaged or has failed
 
Combination meter is damaged or has failed
 
VSS signal circuit is open, shorted to ground or shorted to B+
 
VSS is damaged or has failed
 
PCM has failed
 

Trouble Code: P0505



Idle Air Control, Auxiliary Air Control Valve:

Possible Causes:



IACV-AAC valve control circuit is open or shorted to ground
 
IACV-AAC valve control circuit is shorted to system power (B+)
 
IACV-AAC valve is damaged or has failed
 
PCM is damaged or has failed
 

Trouble Code: P0510



Closed Throttle Position Switch Circuit Malfunction:

Possible Causes:



Closed throttle position switch connector is damaged or loose
 
Closed throttle position switch signal circuit is open or grounded
 
Closed throttle position switch signal circuit is shorted to power
 
Closed throttle position switch or TP sensor is damaged/failed
 

Trouble Code: P0605



PCM Internal Fault Detected:

Possible Causes:



Clear the codes and retest for DTC P0605. If the same code resets, substitute a known good PCM and retest. If the code does not reset, the original PCM has failed.
 

Trouble Code: P1105



MAP/BARO Switch Solenoid Circuit Malfunction:

Possible Causes:



Absolute pressure sensor is damaged or out of calibration
 
MAP/BARO switch solenoid control circuit is open or grounded
 
MAP/BARO switch solenoid control circuit is shorted to power
 
MAP/BARO switch solenoid is damaged or has failed
 
MAP/BARO switch solenoid vacuum hoses loose or restricted
 
PCM has failed
 

Trouble Code: P1130



Swirl Control Solenoid Valve Performance:

Possible Causes:



Swirl Control valve control circuit is open or shorted to ground
 
Swirl Control valve is damaged or has failed
 
Swirl Control valve vacuum hoses are loose, restricted or dirty
 

Trouble Code: P1148



Closed Loop Malfunction Detected (Bank 1):

Possible Causes:



HO2S signal circuit is open or shorted to ground
 
HO2S is damaged, contaminated or has failed
 
HO2S heater is damaged or has failed
 

Trouble Code: P1165



Swirl Control Valve Control Vacuum Check Switch:

Possible Causes:



SCV vacuum hoses are switched or disconnected
 
SCV control vacuum switch circuit is opened or shorted
 
SCV control vacuum switch is damaged or has failed
 
SCV solenoid is damaged or has failed
 

Trouble Code: P1168



Closed Loop Malfunction Detected (Bank 2):

Possible Causes:



HO2S signal circuit is open or shorted to ground
 
HO2S is damaged, contaminated or has failed
 
HO2S heater is damaged or has failed
 

Trouble Code: P1210



Traction Control System Signal Missing:

Possible Causes:



Traction Control communication circuit is open or shorted
 
Throttle Actuator Control (TAC) module has failed
 

Trouble Code: P1320



Ignition Control Signal Circuit Malfunction:

Possible Causes:



Ignition coil primary circuit is open or shorted
 
Ignition coil condenser is shorted
 
CKP sensor signal is erratic, missing or the sensor has failed
 
CMP sensor signal is erratic, missing or the sensor has failed
 
TSB 01-052 (9/01) contains information related to this code
 

Trouble Code: P1335



Crankshaft Position Reference Sensor Circuit Malfunction:

Possible Causes:



CKP sensor connector is damaged, loose or shorted
 
CKP reference signal circuit is open or shorted to ground
 
CKP reference sensor is damaged or has failed
 
Starter motor or starter motor circuit is damaged (not working)
 

Trouble Code: P1336



Crankshaft Position Sensor Circuit Malfunction:

Possible Causes:



CKP sensor connector is damaged, loose or shorted
 
CKP POS signal circuit is open or shorted to ground
 
Crankshaft position (POS) sensor is damaged or has failed
 
Engine flywheel or drive plate gear tooth may be chipped or damaged (causing erratic CKP signals - check with Lab Scope)
 

Trouble Code: P1400



EGR/EVAP Control Solenoid Circuit Malfunction:

Possible Causes:



EGR/EVAP solenoid connector is damaged, open or shorted
 
EGR/EVAP solenoid control circuit open or shorted to ground
 
EGR/EVAP solenoid is damaged or has failed
 
PCM has failed
 

Trouble Code: P1401



EGR Temperature Sensor Circuit Malfunction:

Possible Causes:



EGR temperature sensor connector is damaged or shorted
 
EGR temperature sensor signal circuit open/shorted to ground
 
EGR temperature sensor signal circuit shorted to VREF
 
EGR temperature sensor is damaged or has failed
 

Trouble Code: P1402



EGR System Malfunction (Open) Detected:

Possible Causes:



EGR valve seat leaking or EGR valve stuck in open position
 
EGRC solenoid is damaged or has failed
 
EGR temperature sensor is damaged or has failed
 
EGRC-BPT valve is damaged or has failed
 

 
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