98 RAV4 EGR problems (P0401 code)

[bigdog3162]

Hello, I have a 1998 Toyota RAV4 4x4 autotrans, 130K miles. I have had a check engine light and P04010 for 2 years. I recently replaced the evil EGR VSV behind the engine, replaced the EGR Modulator (PQR valve), and removed and cleaned my EGR Valve. I am still getting a P0401 code. I also replaced many of the vacuum lines associated with the EGR system. I tested the EGR valve by depressing the diaphram while the car was idling and it killed the engine - as I have read it is supposed to do if it is OK and not broken. I replaced the vacuum lines the way they were before I started, but I bought the car used and don't know if they were correct. I need an answer on the vaccum line routing to the VSV from the EGR Modulator and the EGR Valve. These 2 lines feed into the VSV. The VSV has a port on the end, in-line with the body, then another port coming out at a right angle near at the other end. I cannot find a diagram that shows which line feeds into the VSV on which port. I have found two diagrams online that contradict each other.

Any advice is wlecomed!

thanks

bigdog3162

[TrailDust]

I see you've already found our RAV4 forum, so hopefully a past thread or a present member will be able help you resolve your code issue. Glad to have you sign up with us, so let me or one of the other staff members know if you have any questions about Toyota Nation.

[Kiwi-Corolla]

Welcome aboard!

Best of luck solving the problem. I hope the folks in the RAV4 forum are able to help

Enjoy yourself here at TN!