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Maxima p0300 p0021 - 2006 Nissan Altima

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How to fix fault p0021 and engine failsafe program


(powertrain control module, also called an ECM). That consists of a few different components but the P0021 DTC specifically refers to the camshaft (cam) timing. In this case, if the cam timing is above a set limit (over-advanced), the engine light will be illluminated and the code will be set. The "A" camshaft is either the intake, left, or front camshaft. A P0021 engine code is basically the same as a P0011 code, except this is for Bank 2, not Bank 1.
Symptoms Possible sumptoms of OBD code P0021
Most likely a P0021 DTC will result in one of the following: hard starting, poor idle, and/or stalling. There are potentially other symptoms as well. Of course, when trouble codes are set, the MIL (malfunction indicator lamp, a.k.a. the check engine light) illuminates.
Causes Possible causes of OBD code P0021
A P0021 DTC trouble code may be caused by one or more of the following:
Possible Solutions This DTC code is a result of a mechanical fault of the VCT unit or related components, so there is no need for electrical diagnosis. Refer to vehicle specific repair manual to perform component tests for the VCT unit. Notes: Dealer techs have advanced tools and the ability to follow detailed troubleshooting steps, including the ability to test components using a scan tool.

Jan 24, 2015 | 2008 Land Rover Range Rover

2 Answers

How to fix p0021 for 03 nissan maxima


Type: Nissan OBD POO21

OBD & your codes & read up

lots on the internet

Just don't install parts based on codes

Jul 16, 2014 | 2003 Nissan Maxima

2 Answers

Nissan maxima p1800 code and transmission issues, related??


Clean or replace the mass air flow sensor , clear codes and road test

May 12, 2014 | 2004 Nissan Maxima

1 Answer

I have a 1998 Nissan Maxima GLE, I Failed the Emission Inspection (DTC) Diagnostic Trouble Codes of "P1492","P1105" What these Codes exactly? mean


A code P0300 may mean that one or more of the following has happened:
  • Faulty spark plugs or wires
  • Faulty coil (pack)
  • Faulty oxygen sensor(s)
  • Faulty fuel injector(s)
  • Burned exhaust valve
  • Faulty catalytic converter(s)
  • Stuck/blocked EGR valve / passages
  • Faulty camshaft position sensor
  • Defective compute
  • P1105MAP/BARO Pressure Switch Solenoid Valve
  • Check and clean the MAP sensor, or replace.
  • P1492EVAP Canister Purge Control/Solenoid Valve (Circuit)
  • Replacing the purge solenoid will clear code P1492 This should also clear code P0300 as well.

Oct 16, 2012 | 1998 Nissan Maxima

1 Answer

2003 nissan maxima p0021 bank 2 cam timing 40 degrees advanced at idle


To review - - the intake valve solenoid valve controls the flow of oil thru the control valve to adjust valve timing.
The code means the computer "sees" the valve timing as out of range and/or not controllable.
Possible causes could be a defective or stuck solenoid valve, dirty oil causing a blockage, a faulty cam sensor or faulty crank sensor.
Other than changing the oil and filter, the components would need to be checked with a scanner that can look at live data.

Jun 26, 2012 | 2003 Nissan Maxima

1 Answer

Fault code P0021


Hi there:P0021 - "A" Camshaft Position - Timing Over-Advanced or System Performance (Bank 2)

A code P0021 refers to the VVT (variable valve timing) or VCT (variable camshaft timing) components and the car's PCM (powertrain control module, also called an ECM). That consists of a few different components but the P0021 DTC specifically refers to the camshaft (cam) timing. In this case, if the cam timing is above a set limit (over-advanced), the engine light will be illluminated and the code will be set. The "A" camshaft is either the intake, left, or front camshaft. A P0021 engine code is basically the same as a P0011 code, except this is for Bank 2, not Bank 1.

Most likely a P0021 DTC will result in one of the following: hard starting, poor idle, and/or stalling. There are potentially other symptoms as well. Of course, when trouble codes are set, the MIL (malfunction indicator lamp, a.k.a. the check engine light) illuminates.


A P0021 DTC trouble code may be caused by one or more of the following:Incorrect camshaft timingWiring problems (harness/wiring) in intake timing control valve control solenoid systemContinuous oil flow to VCT piston chamberFailed timing valve control solenoid (stuck open)

Possible Solutions:This DTC code is a result of a mechanical fault of the VCT unit or related components, so there is no need for electrical diagnosis. Refer to vehicle specific repair manual to perform component tests for the VCT unit. Notes: Dealer techs have advanced tools and the ability to follow detailed troubleshooting steps, including the ability to test components using a scan tool.To reset the fuel pump, press the button on the switch. The switch is located immediately below the hole in the trunk side trim.

Hope this helps; also keep in mind that your feedback is important and I`ll appreciate your time and consideration if you leave some testimonial comment about this answer.


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Mar 06, 2012 | Cars & Trucks

1 Answer

P0021 code on 2003 Maxima


Timing is out of sequence. Have your timing checked soon to be safe. If your timing goes too far out the piston could slap the valve and wreck your motor. is there any other codes present? Usually if its a bad sensor you will havea sensor code too...

Oct 31, 2010 | Nissan Maxima Cars & Trucks

1 Answer

I have a 2002 Nissan Maxima and the check engine light has come on. One of the codes being reported is P0021. It seems to be related to a cam position sensor. Does anyone know the location of the sensor?...


Here is the location....

http://www.courtesyparts.com/maxima-parts-a33b-2000-2003/genuine-nissan-parts/engine-electrical/221-distributor/-c-1956_1957_1988_1990.html

Jul 08, 2010 | 2002 Nissan Maxima

1 Answer

I have 2002 nissan altima and check engine light is on the code is p0550 and p0021


p0550 for the powersteering pressure switch/circuit
p0021 is for cam timing problem if its a v6 most likely bank2

Apr 12, 2010 | 2002 Nissan Altima

1 Answer

1999 Nisian Maxima and need to know what codes mean?


P1320 Ignition Signal
Signal wire from distributor
P0325 Knock Sensor 1 Circuit Malfunction (Bank 1 or Single Sensor)
O2 senor ( The one before the cat converter )
P0300 Random/Multiple Cylinder Misfire Detected
The misfire detection monitor, a software strategy built into the computer, is designed to detect an engine misfire. The computer can also normally identify the specific cylinder in which the misfire has occurred. A misfire is nothing more than a lack of combustion, which can be caused by poor fuel quality or metering, low compression, lack of spark or unmetered air entering the engine. There are other possible, less obvious causes as well, such as uncommanded Exhaust Gas Recirculatin (EGR), flow. When the misfire monitor detects a misfire, it will trigger the check engine light with the specific cylinder number as the last digit in the P030X code. For instance cylinder 1 misfire is P0301, cylinder 2 is P0302 etc. In this case we have either multiple cylinders misfiring, or the computer simply can't determine the specific cylinder, and as such we are left with the P0300 in computer memory.
Possible Causes:
Fuel injectors, related wiring, sensors and computer issues
Running out of gas, or poor fuel quality
Evaporative emissions system (EVAP) concerns: fuel vapors leaking into engine
Incorrect fuel pressure

EGR system concerns: leaking EGR valve or restricted ports
Base engine concerns: low compression, valve train problems and timing issues
Ignition system concerns including, but not limited to:
Faulty spark plugs
Faulty coil or related wiring
Ignition module or related wiring issues
Ignition related sensor faults or wiring issues

Apr 13, 2009 | 1999 Nissan Maxima

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