Last month, we kicked this series off by showing you how to save some money by diagnosing a bad MAP sensor rather than just chucking cash at new parts that may or may not fix a specific problem. This ...

Your car's computer uses data from the O2 sensors to determine the effectiveness of the catalytic converter and how much fuel to inject. So they're critical pieces. Luckily, replacing one is ...

Got a 'Check Engine' light on your dash, staring at you? Wonder what it means? Wonder how much it will cost you to fix? Wondering if you can fix it yourself, if only you knew what it meant? Enter ...