![]() ![]() ![]() Open the hood of the vehicle and remove the MAF sensor connector’s plug. If you want to check how true that is, the first thing you need to do is put off the ignition switch. The problem with your MAF sensor might be that the hotwire is broken or damaged. A relay or circuit might be dirty and needs cleaning. However, if it does but it is very low, then it might be contaminated. If the MAF sensor does not provide any output, then it needs to be replaced. ![]() With this, the signal of the sensor should increase to about 1.5 to 3.0 volts. Now you can increase the speed of the engine starting from 2500 rpm to 3500 rpm. However, if you notice it is fluctuating or the engine misfires, then you might have loose electrical connections which are due for replacement. With this action, the voltage output should be stable. Using a wrench, tap the MAF sensor softly. With this, you should have about 0.5 to 0.7 volts meter but it might higher on some vehicle model. Now, start the engine and let the idling begin. If you are using an automatic car, you need to set it to Park while you should set it to neutral with a manual vehicle. ![]()
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