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 Ron Z. Your Own Question

Ron Z.
Ron Z., - Toyota Tech -
Category: Toyota
Satisfied Customers: 14860
Experience:  18+yrs experience. State Inspector and Toyota Diagnostics
18617752
Type Your Toyota Question Here...
Ron Z. is online now
A new question is answered every 9 seconds

1999 camry: P0446..Changed vsv at charcoal canister..same code

Resolved Question:

P0446 1999 camry light on. Changed vsv at charcoal canister. No difference, same code again. Checked vsv on airbox and clicked as it's suppose to. Any ideas?
Submitted: 3 years ago.
Category: Toyota
Expert:  Ron Z. replied 3 years ago.

Welcome to JustAnswer.com! My name is DriveFast71(Ron) and I will do my best to answer all of your questions completely and accurately.


 

This is actually a "known problem" and Toyota has issed a Technical Service Bulletin:

 

ENGINE
EG004-99
REVISED

 

Title:
DIAGNOSTIC TROUBLE CODE P0446

 

Models:
'99 Avalon, Camry & Solara

 

June 13, 1999

 

Introduction
Under certain driving conditions, some 1999 Model Year Avalon, Camry and Solaras will exhibit a false M.I.L. "ON" DTC P0446. A Vacuum Control Valve Assembly has been developed to prevent this condition.

 

Warranty Information

This repair is covered under the Toyota Basic Warranty. This warranty is in effect for 36 months or 36,000 miles, whichever occurs first, from the vehicle's in-service date.

 

Coverage is extended to 36 months or 50,000 miles, whichever occurs first, in the states of California and Massachusetts under the California Emission Warranty

graphic

graphic

  • Raise vehicle on lift to gain access to the Purge Canister and remove the two Vacuum Lines indicated in Figure 1.
  • Save the Metal Clamps from the larger hoses for reuse.graphic
  • Install the New Hose Assembly as shown in Figure 2.
  • Reuse the Hose Clamps removed in Step 2 on the large hose as indicatedgraphic
  • Verify that the Vacuum Hose Assembly is installed as shown in Figure 3.
Ron Z., - Toyota Tech -
Category: Toyota
Satisfied Customers: 14860
Experience: 18+yrs experience. State Inspector and Toyota Diagnostics
Ron Z. and 9 other Toyota Specialists are ready to help you
Expert:  Ron Z. replied 3 years ago.

graphic

  • Raise vehicle on lift to gain access to the Purge Canister and remove the two Vacuum Lines indicated in Figure 1.
  • Save the Metal Clamps from the larger hoses for reuse. graphic
  • Install the New Hose Assembly as shown in Figure 2.
  • Reuse the Hose Clamps removed in Step 2 on the large hose as indicated graphic
  • Verify that the Vacuum Hose Assembly is installed as shown in Figure 3.

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:

 
 
 
  • THANK YOU, THANK YOU, THANK YOU!! I've got my baby back. Tomorrow I will get a tank of high octane, remove the top, go for a long long ride and enjoy my car. THANK YOU! Jughead USA
< Last | Next >
  • THANK YOU, THANK YOU, THANK YOU!! I've got my baby back. Tomorrow I will get a tank of high octane, remove the top, go for a long long ride and enjoy my car. THANK YOU! Jughead USA
  • Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help. Mary C. Freshfield, Liverpool, UK
  • This expert is wonderful. They truly know what they are talking about, and they actually care about you. They really helped put my nerves at ease. Thank you so much!!!! Alex Los Angeles, CA
  • Thank you for all your help. It is nice to know that this service is here for people like myself, who need answers fast and are not sure who to consult. GP Hesperia, CA
  • I couldn't be more satisfied! This is the site I will always come to when I need a second opinion. Justin Kernersville, NC
  • Just let me say that this encounter has been entirely professional and most helpful. I liked that I could ask additional questions and get answered in a very short turn around. Esther Woodstock, NY
  • Thank you so much for taking your time and knowledge to support my concerns. Not only did you answer my questions, you even took it a step further with replying with more pertinent information I needed to know. Robin Elkton, Maryland
 
 
 

Meet The Experts:

 
 
 
  • Chris (aka-Moose)

    Auto Technician

    Satisfied Customers:

    278
    16 years of experience
< Last | Next >
  • http://ww2.justanswer.com/uploads/MU/muddyford/2012-6-13_1204_1.64x64.png Chris (aka-Moose)'s Avatar

    Chris (aka-Moose)

    Auto Technician

    Satisfied Customers:

    278
    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:

    167
    ASE & Bosch Master Tech. 30 years experience.
  • http://ww2.justanswer.com/uploads/AM/amedee/2013-10-24_23656_Amedee1.64x64.jpg Amedee's Avatar

    Amedee

    Toyota Technician

    Satisfied Customers:

    1132
    ASE Master Technician advanced level specialist. Wisconsin certified emissions state inspector
  • http://ww2.justanswer.com/uploads/CA/caprio23/2014-4-30_201741_20121205122939.64x64.jpg Anthony's Avatar

    Anthony

    ASE Certified Technician

    Satisfied Customers:

    373
    ASE Master Automobile Technician with over 20 years exp. in this field.
  • http://ww2.justanswer.com/uploads/CR/crzydrvr00/2013-11-3_12123_246347.64x64.jpg Richard's Avatar

    Richard

    ASE Certified Technician

    Satisfied Customers:

    9
    Toyota tech. ASE Certified Technician
  • http://ww2.justanswer.com/uploads/SK/skyvisions/2012-6-9_23736_JACropped3.64x64.jpg Skyvisions's Avatar

    Skyvisions

    ASE Certified Technician

    Satisfied Customers:

    11403
    Toyota Master Diagnostic
  • http://ww2.justanswer.com/uploads/genchigenbutsu/2009-05-09_003043_cimg16431.jpg Genchi Genbutsu's Avatar

    Genchi Genbutsu

    Toyota Master Technician

    Satisfied Customers:

    3425
    Toyota Certified Master Diagnostic Technician, ASE Master Technician with L1 Advanced Engine
 
 
 
Chat Now With A Toyota Mechanic
Ron Z.
Ron Z.
1620 Satisfied Customers
18+yrs experience. State Inspector and Toyota Diagnostics