Question about 2004 Lexus LS 430
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 fix this problem
You can actually google this by putting lexus code ### for each one it will tell you what each one means
Posted on Jan 27, 2009
SOURCE: car codes
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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Posted on Jan 02, 2017
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Jun 28, 2015 | 1991 Lexus LS 400
On this make the warning lights all come on together, the check engine light is the cause of all.
When the service engine soon light (Also called the check engine light or engine management light) is turned on this is to alert you to the fact that Powertrain Control Module (computer) has detected a failure somewhere in the systems it controls you may not feel any difference in the way the engine runs, this can be the transmission or the engine or emission system, there are fault codes set in the modules memory for these faults. What needs to happen now is to have the powertrain control module scanned with a special tool called an OBD2 electronic engine control scanner or a OBD2 code reader. Once the code(s) are read then you must perform the diagnostics for each code and make the appropriate repairs based on the findings of the diagnosis that was performed, this is called doing "Pinpoint" testing.
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