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This article describes how to read the error codes logged by your cars On-board Diagnostics system (OBD). If you're not sure what these...

Many modern cars are equipped with an OBD port that makes it possible to read the error codes logged by the on-board computer. The purpose ...

If you are in the habit of checking the error log of your BMW, you might see repeated warning about a sulphurized catalytic converter. In...

The NOx sensor detects the level of nitrogen oxide in the exhaust gases. It is a component of the emissions control system. This article ...