What Is P044D Obd2 Code - EGR Sensor C Circuit High Fix Car

If your engine is surging or stalling accompanied by a check engine light, your EGR sensor C circuit might be running high. The exhaust gas recirculation system is vital for lowering combustion temperatures and reducing harmful nitrogen oxide emissions. By routing inert exhaust gases back into the cylinders, the computer keeps engine heat under control. When the position sensor sends a voltage signal that is too high, it indicates the valve is likely stuck or the wiring is shorted. Blazing hot temperatures from a failed EGR can cause serious engine knock and violent bucking. Removing the valve to scrub away thick carbon buildup often solves the problem. Meticulously checking the wiring harness for a short to the five-volt reference line is essential before concluding the internal sensor is fried.

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