CODE 0021 IN CEFIRO J31 SORTED OUT BY RYAN (pics)

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Hi tuners, my Cefiro just gave me a code 0021 with the check light on. Anyone out there who can point me in a correct direction to sought this out? I really like the car and don't want any and everyone poking around in there. Someone who knows these cars well and is accustomed working on them is who I'm looking for, thanks in advance for the help.

[skylinechild]

check ryan ramdeen AKA ryotech performance.
Pm sent with his details.

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Ok thanks man, will post results as they come in, siht, that sounds too much like election talk.

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P0021 Nissan - Intake Valve Timing Control Performance Bank 2



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Possible causes
- Faulty Intake Valve Timing Control Solenoid Valve
- Intake Valve Timing Control Solenoid Valve harness is open or shorted
- Intake Valve Timing Control Solenoid Valve circuit poor electrical connection
- Faulty Camshaft Position Sensor
- Camshaft Position Sensor harness is open or shorted
- Camshaft Position Sensor circuit poor electrical connection
- Faulty Crankshaft Position Sensor (POS)
What does this mean?
Tech notes
Since the Intake valve timing control solenoid valve uses oil flow to control timing, dirty oil can cause the valve to stuck open or close. Before replacing the valve, change engine oil and filter and reset engine code.
What does this mean?
When is the code detected?
When there is a gap between angle of target and phase-control angle degree, the valve will stop working and the ECM will trigger the P0021 code.
Possible symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
- Lack/Loss of power
- Engine rough idle
P0021 Nissan Description
This mechanism hydraulically controls cam phases continuously with the fixed operating angle of the intake valve.

The ECM receives signals such as crankshaft position, camshaft position, engine speed, and engine coolant temperature. Then, the ECM sends ON/OFF pulse duty signals to the intake valve timing control solenoid valve depending on driving status. This makes it possible to control the shut/open timing of the intake valve to increase engine torque in low/mid speed range and output in high-speed range.

The intake valve timing control solenoid valve changes the oil amount and direction of flow through intake valve timing control unit or stops oil flow. The longer pulse width advances valve angle. The shorter pulse width retards valve angle. When ON and OFF pulse widths become equal, the solenoid valve stops oil pressure flow to fix the intake valve angle at the control position.

P0021 Nissan Information for specific Nissan models
P0021 2002 NISSAN ALTIMA SEDAN
P0021 2003 NISSAN ALTIMA SEDAN
P0021 2004 NISSAN ALTIMA SEDAN
P0021 2005 NISSAN ALTIMA SEDAN
P0021 2006 NISSAN ALTIMA SEDAN
P0021 2004 NISSAN MAXIMA
P0021 2005 NISSAN MAXIMA
P0021 2006 NISSAN MAXIMA
P0021 2007 NISSAN MAXIMA
P0021 2008 NISSAN MAXIMA
Need more help?


Read more: http://engine-codes.com/p0021_nissan.html#ixzz3AZrbjffe

[skylinechild]

when you visit ryan let us know the outcome.

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Will do.

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Went by Ryan today, that guy knows his s**t well. Very thorough with his analysis and he takes time to explain whatever shows up during the scanning process. Very professional settings, not the mango tree type of scanning done here. He suggested that I do a cleaning of the entire system which I did, no regrets at all, the car is running like Usine guyl catch him with ah nex ting lol. I will post some more info later on. Bottom line is contact Ryan for a proper analysis on your ride and you wouldn't regret it. Thumbs up for a really professional service and a really cool guy who makes sure the customer is satisfied with their unit when they leave, I was.

[skylinechild]

Went by Ryan today, that guy knows his s**t well. Very thorough with his analysis and he takes time to explain whatever shows up during the scanning process. Very professional settings, not the mango tree type of scanning done here. He suggested that I do a cleaning of the entire system which I did, no regrets at all, the car is running like Usine guyl catch him with ah nex ting lol. I will post some more info later on. Bottom line is contact Ryan for a proper analysis on your ride and you wouldn't regret it. Thumbs up for a really professional service and a really cool guy who makes sure the customer is satisfied with their unit when they leave, I was.

hey man ,i'm happy you got it sorted out. what was causing the check engine light??
was it a bad sensor or was it something else??
exactly what was done - besides the cleaning??

and lastly...what was your total bill???

i'd recommend Ryan hands down. he also does engine rebuilding and turbo charging and such

since you did the cleaning i would have recommended a new fuel filter new spark plugs and air filter...definitely feel the difference....

I'd also highly recommend you do a complete transmission fluid replacement.
Just tell Ryan you want him to supply the oil.

awaits full details and pics - if any !!!

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This is/was the problem area which Ryan sorted out.

[skylinechild]

Wow....small thing like that cause a check engine light....

Did ryan say what caused the unit to be in that condition, and what was his recommendation??

it looks like you didnt change your oil in time...

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Nah not me, previous owner, I changed oil within two days of buying the car then problem on day 3, wifey watch me like uhh lol. Was the lame a** previous owner who was ballsn up. Yuh shudda see what was running for plugs on the rear bank. Poor "person" their mech was only changing those on the front bank and charging for full service. Will post some pics of those soon.

[skylinechild]

Nah not me, previous owner, I changed oil within two days of buying the car then problem on day 3, wifey watch me like uhh lol. Was the lame a** previous owner who was ballsn up. Yuh shudda see what was running for plugs on the rear bank. Poor "person" their mech was only changing those on the front bank and charging for full service. Will post some pics of those soon.

..wow....like the mechanic didnt know it was a V6 engine and it had 2 sets of spark plugs....

i suspect you may have more issues comin up in the future as you start fixing things from aside..a simple thing as an oil change trigger a CEL just make sure you using correct oil & filter this time...and change it on time..

as i recommended...go for a full transmission flush....feel the difference....

stick with ryan....0 issues..

what was your total bill.?? and load up more pics...

[~Vēġó~]

glad you were able to sort out the scenes.....

mine seems to be in need of oil pan gasket change.....

[Dj Leroy]

Hey Where is Ryan Located and do u all have a # for him my j31 is giving some tranny problems.

[skylinechild]

Hey Where is Ryan Located and do u all have a # for him my j31 is giving some tranny problems.

ryan is located in claxton bay.

his contact number is 469-7803

relevant info :-

Contact for Appointments:
RYAN RAMDEEN - PROPRIETOR
Automotive Performance Analyst (Hons)
Specialized in High Performance Powertrains (Engine Management & Mechanical Systems)
Wyoming Technical Institution - Sacramento, California USA.
CREDENTIALS ARE AVAILABLE UPON REQUEST

Location: #2 Phillip Lane, Union Village, Claxton Bay
Tel: (868) 469-7803
Email: ryotech@live.com
Web: http://www.ryotech.webs.com
Operating Hrs: MON - SAT: 9am to 6pm & SUN: 9am to 1pm

see link >> viewtopic.php?f=6&t=418527

[Dj Leroy]

Thanks Very Much