Any tips for EGR replacement?

Give yourself 2 days, don't try to rush through it in one day.

I've found it extremely useful to have a cable type flexible hose clamp tool instead of a hose clamp plier or a pair of long reach long nose pliers. Though it's good to have and use all three.

The other necessary tool is a hose plier set. It's extremely difficult to find enough room to get your hands in tight spaces and get enough leverage to loosen stuck hoses due to high voltage cables and hoses in the way.

Astro Pneumatic Tool 9409A Hose Clamp Pliers https://a.co/d/gpLu2ar

Pittsburgh 3 Piece Long Reach Hose Grip Pliers https://a.co/d/2tO2qQ3

Posted via the PriusChat mobile app.

 

Also, a tool like this is very handy when you inevitability drop something (nut, bolt, tool, gasket, etc) down into the engine bay.

NoCry Magnetic 27.7in Grabber Tool with an Extra Long, Flexible Cable; Comes with a Retractable Claw Grabber, Bright LED light and a Magnetic Tip with 5lb Pull Strength https://a.co/d/dHxeCUq

Posted via the PriusChat mobile app.

 

If you haven't taken it apart yet, it would be really helpful (to us and you) if you jot down your car's EGR flow measurement before you begin. Then you can compare the measurement after you have done the work.

It helps us because if you post those measurements (in the thread I linked) and your mileage, it adds to the data we have on how rapidly things deteriorate across a wider sample of cars.

It helps you because, after doing all that work, you can compare the measurements and know actually how much you accomplished.

 

You're looking for one that can show "Mode 6 emissions monitor results". It's a standard OBD-II thing, so there ought to be some apps that can do it. I don't know which ones though.

 

Dont drop the gasket or tiny washers specially the ones under and in the back. If you do drop em, your local toyota dealer should have them.

 

Check first two links in my signature.

one of the first steps in my workflow is drain 2 qts/liters of the engine coolant, which drops the level lower than the EGR cooler; you needn’t spill a drop. When done pour it back into reservoir: it’ll be a little high (helps to vent system while pouring), in my experience settles down with a few days driving.

when lifting off throttle body, just leave its coolant lines attached.

 

Sounds great, but it seems like that requires a techstream subscription and a special tool from Toyota? Can this be done more easily somehow with an ordinary OBD2 scanner and software that is not subscription based?

 

The thread that I linked contains a lot of posts from people using other scan tools to do it. "Mode 6" monitor result queries are a standard OBD-II thing, so it should not be hard to find scan tools that can do them.