How JustAnswer Works:

  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.

Ask Jay Your Own Question

Jay
Jay, Nissan Technician
Category: Nissan
Satisfied Customers: 14445
Experience:  20+yrs experience with Nissan & Infiniti Trained & Certified.Currently still working for Dealer
10181755
Type Your Nissan Question Here...
Jay is online now
A new question is answered every 9 seconds

Hi.. i have 97 N.Pathfinder 3.3L and check engine is on..PO

Customer Question

hi.. i have '97 N.Pathfinder 3.3L and check engine is on. There's PO code 0443 and 1447 and 325. Can you pls. help me how to fix it. Thank you so much.
Submitted: 5 years ago.
Category: Nissan
Expert:  Kat replied 5 years ago.
Thanks for using Just Answer!!

The P0325 is for the knock sensor only. Replace the knock sensor.

The P0443 and P1447 are for the EVAP canister purge control solenoid valve. This could be due to the following problems:

EVAP canister purge control valve
EVAP control system pressure system
Vacuum leak from a hose
cracked EVAP canister
Absolute pressure sensor
MAP/BARO switch soleniod valve

All of these items have to be checked using a voltmeter and/or a vacuum pump. If you are capable of checking these items I can get you the instructions. Let me know.
Customer: replied 5 years ago.
hi..Kat. its more better if you can give me the instruction how to do it, especially where are those Absolute pressure sensor and MAP/BARO switch solenoid valve.thanks.
Expert:  Kat replied 5 years ago.
For some reason I cannot get my documents to paste to this post. Do you have a fax machine that I can send you some paper work to??
Customer: replied 5 years ago.
i'm sorry our fax machine is not working right now. anyway, i can wait if you are ready to send it to me.
Expert:  Kat replied 5 years ago.
I cannot get my computer to work right. I might be able to email you the documents but I cannot get them to attach to this post for some reason. If you do not have an email address I will opt out so that someone else might be able to assist you. Sorry for any inconvenience this may be causing you.

 

 

 

Expert:  Jay replied 5 years ago.
Hello and thank you for using JustAnswer.com

The first code the P0325 for the Knock sensor. I would try to clear the code and see if it returns. It could be just a false code. If it does not clear, then the sensor will need to be replaced. The sensor is located on the top of the engine block under the intake manifold. So the upper part of the engine has to be removed to replace that sensor. That is why I am saying to try to clear it first. Here is a image on where it is located.graphic

As for the other 2 codes. P0443 and the P1447 Both are evap system codes and are involved in the evap purge system. Here is a image of the purge control valve under the hood. Disconnect the rubber hose to it and see if you get small rubber pellets. That is most likely the problem since you have so many purge codes. If you find pellets then the evap canister has broken and contaminated the system and will require the system to be blown out and maybe some components to be replaced. graphic
graphic
If you have any more questions on this, please feel free to ask. Thanks Jay!

JustAnswer in the News:

 
 
 
Ask-a-doc Web sites: If you've got a quick question, you can try to get an answer from sites that say they have various specialists on hand to give quick answers... Justanswer.com.
JustAnswer.com...has seen a spike since October in legal questions from readers about layoffs, unemployment and severance.
Web sites like justanswer.com/legal
...leave nothing to chance.
Traffic on JustAnswer rose 14 percent...and had nearly 400,000 page views in 30 days...inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent.
Tory Johnson, GMA Workplace Contributor, discusses work-from-home jobs, such as JustAnswer in which verified Experts answer people’s questions.
I will tell you that...the things you have to go through to be an Expert are quite rigorous.
 
 
 

What Customers are Saying:

 
 
 
  • I was in trouble with an electrical issue with my brand new Nissan. I frantically went online trying to find help and luckily I found your site. I reached a NISSAN tech named RIP. He was absolutely tremendous and helped me work through the issue. What a pro! cjaz Lexington, KY
< Last | Next >
  • I was in trouble with an electrical issue with my brand new Nissan. I frantically went online trying to find help and luckily I found your site. I reached a NISSAN tech named RIP. He was absolutely tremendous and helped me work through the issue. What a pro! cjaz Lexington, KY
  • I would (and have) recommend your site to others I was quite satisfied with the quality of the information received, the professional with whom I interacted, and the quick response time. Thanks, and be sure that I'll be back whenever I need a question answered in a hurry. Stephanie P Elm City, NC
  • used your service this weekend with "Trecers" help. thank you ,thank you, thank you. replaced an A/C fan motor. Local Auto Zone had part. $15.00 "tracer" fee and $40.00 for parts, I saved several hundreds of dollers at a shop. i will recommend you and use you in the future. David L. Richmond, TX
  • 9 dollars, 2 hours of my time, and I drove away. Your diagnosis was right on the mark. Thank you so much. Phil Marysville, CA
  • Lurch. Thank you very much. I had real doubts about this website but your promptness of response, quick followup and to the point answer with picture was incredible. Charles Walnut Creek, CA
  • As a single woman, I really appreciate an excellent and affordable opinion.
    Thank you Geordie, I will not hesitate to contact justanswer in the future!
    Sue Charleston, WV
  • Another great insight to what may be the problem. I will have my mechanic take a look at it tomorrow. Thanks again, Frank...you do indeed know your stuff. Jim Castleberry, FL
 
 
 

Meet The Experts:

 
 
 
  • Tim Mohr

    ASE MASTER TECH

    Satisfied Customers:

    446
    30 YRS EXPERIENCE, FOREIGN AND DOMESTIC, GAS AND DEISEL
< Last | Next >
  • http://ww2.justanswer.com/uploads/tsmodie/2009-6-10_144056_tim.jpg Tim Mohr's Avatar

    Tim Mohr

    ASE MASTER TECH

    Satisfied Customers:

    446
    30 YRS EXPERIENCE, FOREIGN AND DOMESTIC, GAS AND DEISEL
  • http://ww2.justanswer.com/uploads/CA/caprio23/2011-12-13_155550_20111213105344.64x64.jpg Anthony's Avatar

    Anthony

    ASE Certified Technician

    Satisfied Customers:

    306
    ASE Master Automobile Technician with over 18 years exp. in this field.
  • http://ww2.justanswer.com/uploads/FO/fordguy4u/2011-12-17_222940_HPIM1257.64x64.JPG Ron's Avatar

    Ron

    ASE Certified Technician

    Satisfied Customers:

    171
    34 years of automotive Repair
  • http://ww2.justanswer.com/uploads/MU/muddyford/2012-6-13_1204_1.64x64.png Chris(aka-Moose)'s Avatar

    Chris(aka-Moose)

    Nissan Technician

    Satisfied Customers:

    165
    16 years of experience
  • http://ww2.justanswer.com/uploads/EU/eurotec/2012-6-11_13153_mpjaphoto.64x64.JPG Marty's Avatar

    Marty

    ASE Certified Technician

    Satisfied Customers:

    127
    ASE & Bosch master tech. 30 years experience.
  • http://ww2.justanswer.com/uploads/BA/baddad1/2013-8-30_131413_11848761610058140852271553042976n.64x64.jpg Mike V.'s Avatar

    Mike V.

    Nissan Technician

    Satisfied Customers:

    7443
    Nissan factory trained and Certified Subaru Technician.
  • http://ww2.justanswer.com/uploads/CR/crzydrvr00/2013-11-3_12123_246347.64x64.jpg Richard's Avatar

    Richard

    ASE Certified Technician

    Satisfied Customers:

    92
    Nissan Tech ASE certified technician