Hey guys! I can't stress enough how important it is to TEMPORARILY cover the EGR ports on the cylinder head and upper intake... It's super important to protect these ports from dust and debris until you install your factory emissions equipment.
The mighty upper intake, also known as the "air intake chamber assembly" is up next. I am building mine to retain the charcoal canister and PCV system, but I will install the EGR system later... definitely before running the engine. If you want to know how to properly seal the EGR systems, to protect it from dust and debris until you install the engine/emission systems, this is how to do that. I have not seen anyone remove the vacuum lines and blue vacuum switching valve associated with the EGR. I did. We'll see if it works!
Order 3.5mm Toyota Vacuum hose (x3 90999-92003). Cut the following hoses as seen in the green section of the table Order 1 foot of generic 6mm silicone vacuum hose. Cut the hoses listed in the blue section of the table. You will also need the formed hose, 90910-05217, and x4 3.5mm vacuum caps, 90339-03005. I used some OEM clamps, as well as some from a universal kit.
First install a new VSV (90910-12043) on the tube assembly. It's the brown switch. Then fix the tube assembly to the upper intake and torque bolts to 14 ft-lb. Install the light blue VCV (90925-03192) as shown in the picture.
Next, install the two 30mm hoses (#1,#2) and check valve (90917-10049) as shown in the orange circle. Make sure the black end of the check valve is pointed towards the VCV. Install the vacuum T fitting next. From this view, cap (#15) the right port (90339-03005), use a universal clamp if it makes you feel better. Connect the OEM formed hose (#13) to the left port and intake as shown, and use the clamps if you desire. They are not used here from the factory.
Install hose #10 onto the top port of the VSV and connect to the tube shown. Install hose #7 from the side port of the VSV to the tube shown.
Install two hoses (#8,#9) onto the two tubes as shown. These will later be connected to the TVV on the cylinder head.
Attach hose #6 to the tube as shown. This will later be connected to the fuel pressure regulator.
Install hose #4 to the tube as shown. Install a new gas filter (90917-11022) to the upper intake and connect to the other end of the hose.
Install hose #3 to the VCV and connect to the tube as shown.
Install hose #11 with clamps from the VCV to the tube shown.
Install 6mm hose #12 on the VCV with clamps as shown.
Install hose #5 on the port as shown. This will later be connected to the throttle body. Install hose #16 next to it.
Install Cap #14 with clamp.