[Lordblood]

They've finally gone, so I need to get new ones. I'm gonna purchase all 4.

First off, what all should I look for, online I see they range from $20 up. At the dealer it sold for $350 each (no joke!).

Also, I've been getting bad gas cap CEL codes and the guys at Auto Zone said it might be the MAF going bad. What should I do about this? Is it related to the 02 Sensor or a separate problem.