Is there anyway I can replace any of these things on my own, I'm not experienced and barelly know much. But I feel like the mechanics around me are trying to cheat me, not only that I spoke to other customer and they were happy either so ya....
P.S. What exactly is a Knock Sensor? When my friend was pulling codes a while back it did show up, but went away 2 days later.
And all the repairs/replacements I listed earlier were done by friends or mechanics.