Question about 2001 Lexus RX 300

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Car codes Had a problem with my 2001 lexus. VSC and check engin light on. Had car hooked up to a computer and got these codes....p0440 emission control malfunction.....p0441 perge flow fault.....p0446 vent circuit malfunction...how do i know what the code problems mean.

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  • alokint Jan 10, 2009

    LS430 year 2001, check engine light started to come on then off for a while then on again. After connecting a scanner to read the code, Check VSC control message showed up. 104000 miles, just ordered new spark plugs for it. Could this be emission related caused by old spark plugs? If not, then what?
    Thank you.
    nick

  • Anonymous Mar 20, 2014

    check lite on, kinda bangs into gears1,2,3 ect.code stored PO717, PO793, Lexus dealer said internal trans problem, installed used trans with trans control module,still same condition and codes.....I don't know wiring?

  • Anonymous Mar 20, 2014

    P0441

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When you have P0440, P0441 and P0446, it is a very good bet that the fuel cap was loose, or the fuel cap rubber seal is compromised. You will get all three of those codes every time that the cap is loose. Always make sure that the fuel cap is as tight as you can get it after you refuel.

Posted on Nov 13, 2008

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I have a 2000 lexus rx 300 I have replaced the evap canister. Then I had a code 0440 pop up and a code that said fule mixer sensor code pop up I had this replaced. Now the evap canister malfunction code is back 0440 and no other code what is the problem?

Posted on Jun 18, 2009

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Hi there:
When this comes on as it has it means: When the center differential is locked, VSC control turns off and the VSC OFF indicator illuminates. This is straight from the Lexus diagnostic chart.

The system is faulted in some way so you will need to have the fault memory read out, and then depending on what fault code or codes are stored will determine the type of diagnosis that will need to be performed.

A dealer would be your best bet to get the cause determined. Their scan tool, when hooked up to you vehicle will give them all of the information they need to rectify your condition. After the scan results are found, replacement parts or adjustments can be performed.


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