If you think the company we know as Subaru is a latecomer, think again.

Measuring the actual mass of the air ingested has taken engine management to new heights of accuracy, but troubleshooting requires solid understanding.

In past issues we’ve given you an overview of how OBD II works. Now, we expand on that and provide some practical procedures

Welcome to http://techinfo.subaru.com, where you can access all the same information that authorized Subaru dealers get.