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Discussion Starter #1
So after turbocharging the RAV, the idle speed varied from 600 to 7 or 800, normally it idles at 1100 for me. What could be causing this?

Note: My PCV valve isnt working, new one shipping to the dealer, could this be the issue?

Also, aftermarket o2 sensor #2 replaced the stock one, maybe this is the issue?

Another issue is my:
Check engine light is on
4WD light is on all the time
and my VSC light is on all the time

All three of these came on together and I reset the codes, but they came back later.

I read that cleaning the EGM valve will help this, but I couldn't find it behind the engine.

Any thoughts?
 

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There are lots of reasons that those lights come on. Did you check what error code came up. There is a sticky note in the perament notes up top that explain some of the code combinations. I just had code P2121 come up and I changed the Accelarator pedal speed sensor and so far so good. You need to do some more digging.
 

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Just my humble opinion, but once you make a major change to an engine, like adding a turbocharger, who knows what might come into play regarding the ECU and various sensors. Like grmuller says, you'll need to trace down each code to determine what set it off.
 
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