![]() ![]() Check the output voltage with the engine running (circuit diagram for pin assignment is necessary). Check the voltage supply with the ignition switched on (circuit diagram for pin assignment is necessary). ![]() Check the measuring elements for damage. Check the connector for a correct fit and good contact. The following steps should be taken into account during MAF sensor troubleshooting: RPMs changing noticeably without driver input. Excessive vibrations when stationary and/or Poor engine running at idle and/or surge Hesitation/stall on rapid acceleration “Check engine” or “service engine soon” light is on These lights come on when the engine computer detects some fault in one of the components of the emission control system. Measuring element drift (exceeding the measuring framework).Ī problem with the mass air flow sensor often causes the ”check engine” or ”service engine soon” light in the vehicle instrument panel to illuminate. Mechanical damage (vibrations, accident) and Contact fault at the electrical connections ![]() In this case, a replacement becomes the equivalent of a long drain oil service…it almost becomes a service-style repair. For example, with small or compact cars, the MAF sensor can clog quicker, as it is placed in a smaller engine bay subjected to more risk in critical areas (oil vapor flows and combustion debris). Contamination could even occur as early as at every 18,000-25,000 miles, depending on the vehicle model. ![]()
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