Please help ((EGR valve excessive flow))

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03-11-11 | 09:53 PM

#16

KevinES300

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From: WA

Quote:

Originally Posted by GS4_Fiend

You would need to check out the EGR's VSV. That's the valve that provides vacuum to the EGR to make it operate.

Toyota doesn't use DPFE on their EGR system.

Can u please tell me where is the location of the VSV.

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03-11-11 | 09:57 PM

#17

KevinES300

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From: WA

Quote:

Originally Posted by mitsuguy

sorry, its not called DPFE then, is the vapor pressure sensor... its two different names for what ends up being the same thing - its the thing that measures egr flow... one is a pressure sensor, the other is differential pressure sensor...

The error cods for EVAP sensor is different (P0446, P0442, P0440) and i am not having any of those
but you might be right because when i top up mt fuel level the light goes OFF and when the level drops to quarter the CEL pops back ON
do you recommend getting one from a junk yard?

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03-14-11 | 01:18 AM

#18

mitsuguy

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From: AZ

I really wish I had access to Mitchell like I used to at my shop... but, I did find this for you...

It is a PDF with the troubleshooting step by step flow chart...

It would seem that Lexus, at least on the mid-late 90's ES300's used a temperature sensor to determine EGR flow...

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