Picture this: you've installed a new programmer that adds 150-plus horsepower and more than 200 lb-ft of torque to your 7.3L Power Stroke. The only problem is, your E40D-4R100 automatic transmission ...

For all its '81 vehicles, GM introduced a computer-controlled engine-management system named Computer Command Control. It became known as CCC or C-3. The engine controller—first called an engine ...

Q: I just read your column responding to a question about ignoring a check engine warning light. I have a 2004 Lexus ES330 that had a check engine warning light. After a couple of weeks I was able to ...