User here. I recently acquired a 2004 Mustang 3.9L V6 in less-than-ideal condition. Despite its rough state, it's still running, but I'm encountering several issues. I snagged it for $1600 and I'm keen to spruce it up on a budget. I'm all for getting my hands dirty and tackling the repairs myself, but I want to avoid wasting money on unnecessary parts.
Here are the pesky error codes I'm dealing with: P0122 P0406 P0316 P0303
And here's a rundown of the symptoms I've observed:

• Odd...

Help Needed to diagnose Mustang