yup...I just don't know how the Lexus EVAP system works... gimme a few and I'll get you some info...

 

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...

 

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.

 

ok, here's the rest...

 

there ya are...

 

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

 

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:

 

is that mitchell on demand or mitchell ultramate you have?

 

ondemand5...

 

mitsuguy- thank you for reply, i will try to fix it maybe in the future , propably to pass emission test.

 

sadly..i cannot find the EVAP VSV...where is it located?

 

bump....does anyone know where the EVAP VSV is located??

thanks!

 

bump bumpp

 

bumping this old thread as i have same codes on my 99 SC300
p0441 & p0446