Please help I have the following codes and need them gone-
p1118 p1114 p1423 p1411
engine error codes-
17526 17522 17861

I have looked them all up, but I'm wondering if they are related and need help figuring out solutions.

 

If you've looked up all the codes, make sure you include the definition for each code in your post.

You may miss out on a resolution to your problem because other members won't feel like looking up all 7 codes..

 

I would start with your secondary air pump. You're 2.7T is a 2001, so it's more than likely in need of a new SAIP by now. This may cure your O2 sensor issues as well.