Mitsubishi Outlander Sport RPM bouncing issue while driving on freeway, vehicle potentially entering limp mode on Mitsubishi Outlander Sport

Some Mitsubishi Outlander Sport owners report experiencing RPM bouncing while driving on the freeway, which can lead to the vehicle unexpectedly entering limp mode. These RPM fluctuations may be attributed to several factors, including transmission problems, dirty spark plugs, vacuum leaks causing misfires, or incorrect engine speed signals from the crankshaft position sensor. Additionally, some owners find that driving with the Air Flow Sensor (MAF) connector unplugged can trigger limp mode, which may assist in diagnosing faults with the AFS or its connector. In cases where RPM fluctuations occur during acceleration, the idle air control valve (IAC) on the throttle body may be the culprit, affecting engine idle speed. If these issues arise, it is recommended to seek professional assistance to accurately diagnose and resolve the underlying problems.