SAIS air change over valve replacement

[hancock1701]

Hi guys,

I've had the two codes P0410 and P1411 coming on every ~100 miles. I've been clearing and ignoring the two codes but it's getting really annoying that I decided to address the problem. After searching and reading, my question is that is it a do-able job to replace the air change over valve, since from what I read, space is really an issue to get to the valve and removing the intake manifold doesn't seem very easy?

Please advise, thank you!