What is P1491 : Engine Error Code Causes Explained
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YouTubeAuto User Guide
What is P1491 : Engine Error Code Causes Explained
In this guide, we will explore the P1491 engine error code, its causes, symptoms, and possible fixes. This diagnostic trouble code (DTC) is typically related to the EGR valve system, radiator fan relay circuit, or vacuum cut valve bypass solenoid circuit, depending on the vehicle manufacturer. 🛠 Topics Covered: What P1491 (EGR system or ...
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