We may receive a commission on purchases made from links. While it may seem intimidating at first, there are plenty of easy DIY auto maintenance projects that even the most novice DIY-er can handle.

So the O2 sensor (located in a tight space on the engine manifold) on my '86 Accord is putting out 0volts instead of the .4-.6 it should be. And the mechanic wanted 115 dollars to replace it (I'm ...