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Check Engine Light - What was your Problem?

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Old 05-30-07, 06:41 PM
  #16  
mitsuguy
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Originally Posted by contentryd
came back from advance auto...scanned with OBDII ...two problems came up:

P0441
EVAP Emission
Control System
Purge Flow Fault

P0446
EVAP Emission
Control System
Vent Circuit Malfunction

anybody happen to know what these mean?
yup...I just don't know how the Lexus EVAP system works... gimme a few and I'll get you some info...
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Old 05-30-07, 07:59 PM
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well, hell... Mitchell has the full diagnostic procedure for this, but they are in the middle of an update right now...

here's the heading... I'll post the full diag procedure as soon as it's up and running...
Attached Thumbnails Check Engine Light - What was your Problem?-heading.jpg  
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Old 05-30-07, 08:31 PM
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I got my sc300 about a month ago.
I got code 71, EGR System Malfunction, what should i check/ replace?
It has aftermarket exhaust if it matters.
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Old 05-30-07, 08:58 PM
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ok, here's the rest...









Last edited by mitsuguy; 05-30-07 at 09:01 PM.
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Old 05-30-07, 09:02 PM
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there ya are...
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Old 05-30-07, 10:05 PM
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thanks alot mitsuguy...ill have to go check this out...i have alldata but havent checked up on it yet...alldata dont really tell you what to do though ..willl report back
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Old 05-31-07, 05:35 AM
  #22  
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Originally Posted by contentryd
thanks alot mitsuguy...ill have to go check this out...i have alldata but havent checked up on it yet...alldata dont really tell you what to do though ..willl report back
alldata sucks

I've used it too... not a fan
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Old 05-31-07, 07:03 AM
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Originally Posted by al4nek
I got my sc300 about a month ago.
I got code 71, EGR System Malfunction, what should i check/ replace?
It has aftermarket exhaust if it matters.
71: EGR Gas Temperature Less Than Predetermined Level During EGR Control

this is one of those that isn't going to hurt ANYTHING... you can just leave it alone - it means either the temp sensor is bad or there isn't enough EGR flow to heat up the temp sensor...

but, if you want to fix it, here is what you do:







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Old 05-31-07, 10:20 AM
  #24  
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is that mitchell on demand or mitchell ultramate you have?
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Old 05-31-07, 11:00 AM
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Originally Posted by contentryd
is that mitchell on demand or mitchell ultramate you have?
ondemand5...
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Old 05-31-07, 03:23 PM
  #26  
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mitsuguy- thank you for reply, i will try to fix it maybe in the future , propably to pass emission test.
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Old 06-02-07, 07:38 PM
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sadly..i cannot find the EVAP VSV...where is it located?
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Old 06-13-07, 02:33 AM
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bump....does anyone know where the EVAP VSV is located??

thanks!
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Old 06-19-07, 05:51 PM
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bump bumpp
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Old 05-23-11, 05:59 PM
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bumping this old thread as i have same codes on my 99 SC300
p0441 & p0446
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