P1404, 0131, and 0137 Code Set

I have a question regarding silhouette 2000 with 111k miles. I recieved a Codes of P1404, 0131, and 0137 code set. I am not sure if the EGR is the culprit or the engine is running rich. Does a clogged EGR can have van run like a bit sluggish. Sometimes it felt like I am driving a truck instead of a minivan.

Any feedback will be good.

Thanks

EGR and/or vacuum leaks can cause these problems.

I looked up both the 131 and the 137 and the both mentioned checking for vacuum leaks in the troubleshoot sections.

I would get that EGR valve checked and all the passages around it should be checked for dirt, buildup, etc.

Take Care,

Thanks for the update. Now what is the exact location of EGR Valve in this model. Can it be easily replaced or cleaning is a good thing.

Thanks for the staff at Autozone to read these codes for me. It has a reset and holding. But I like to look into this problem as this van started costing us alot to maintain.
Thanks again.