mass air flow sensor testing procedure

No scan tool is required or any other expensive testing equipment. Either run the BMW DIS GT-1 tester procedure for MAF testing at idle and inreceased idle RPM or use this IMHO far more accurate and reliable procedure to measure MAF output voltages with engine off.

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HOW TO KNOW IF MAF SENSOR IS BAD OR GOOD.

. Remove the mass air flow sensor. Mass Air Flow MAF SensorIntake Air Temperature IAT Sensor 1 Charge Air Cooler CAC Temperature Sensor 2 Boost Pressure Sensor Engine Control Module ECM Air Cleaner Assembly Charge Air Cooler CACIntercooler. Youll test this GM MAF sensor with a multimeter that can read Hertz Hz frequency.

You may need to remove the air filter box completely. I also show you how you can figure out the wires without a wiring diagram. TEST MASS AIR FLOW SENSOR CODE P0102If you have code for MAF sensor and you engine light is on we will demonstrate.

Perform the MAF Sensor Relearn Procedure if any of the following components are replaced. To test the mass sensor first thing you need to do is to put off the ignition switch and then plug the MAF electrical connector. Mass air flow sensor testing with a multimeter without dismantling.

Better still use both methods. This is one of the easiest mass air flow sensors to test. Here is a video on how you can test your MAF Sensor using a basic 5 Multimeter.

How to test your mass air flow sensor MAF and to quickly know if it is defective. Road test LH and direct voltage. Ford MAF Sensor Testing Ground SignalTesting the Ground Circuit of the Ford mass air flow sensorThe Ground circuit connects at the Battery Negative Termi.

The following test is an on-car test that checks the performance of the MAF sensor with the engine running. Then black probe the ground wire which is usually. Once you have access to the mass air flow sensor carefully remove any larger pieces of dirt such as leaves or small stones etc.

Then compare the results. You need clear access to the mass air flow sensor housing without removing it from the vehicle.

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