Description
WILL A MALFUNCTIONING EGR POSITION OR PRESSURE SENSOR ILLUMINATE THE CHECK ENGINE LIGHT OR AFFECT VEHICLE OPERATION?
Yes, a failing sensor can illuminate the malfunction indicator lamp (MIL), and may cause drivability problems. The signal is critical to the performance of the engine management system. Too much flow and the engine will stall or have a rough idle. Too little flow and emission gasses (especially NOx) will be elevated and detonation will occur.
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