how to test mass air flow sensor with scanner

Then carefully pull off the sensor from the air duct and disconnect the electrical. Chevy Buick Olds GMC Cadillac The frequency specification I quote in this video will differ.

How To Test A Mass Air Flow Maf Sensor Without A Wiring Diagram Youtube

MASS AIR FLOW SENSOR.

. The air cleaner assembly and hoses should be properly connected and tight to avoid air leaks. Trouble codes P0171 System Too Lean Bank 1 and P0174 System Too Lean Bank 2 are also often caused by a bad or contaminated mass air flow sensor. Bad sensor will not be responsive dirty sensor will have limited or slow.

In this video we will demonstrated how we tested the MAF sensor on this BMW to see if it is good or bad. You can get a reading of the MAF sensor with an advanced scan tool. Connect the black lead to the negative terminal of.

All of the tests are ON CAR TESTS do not remove the mass air flow sensor from the vehicle or from its plumbing. Connect to the vehicles computer and stream the MAF grams per second GPS reading. Step 1 - Find your MAF.

Ford has used a Hot-Wire type mass air flow sensor for many years that. The procedures shown in this video can be applied to all 3-wire General Motors MAF sensors. The Mass Air Flow Sensors Signal Wire Test.

Check the air filter for clogging filter housing and ductwork for debris and dust. You can test the mass air flow sensor using a scanner or a voltmeter. A multimeter is a device that measures values like the voltage resistance and current.

Connect the MAF sensor to the connector. How to Test the Mass Airflow Sensor without a Multimeter. It is a must-have gadget.

Summary Of The MAF Sensor Tests. Chapters 4 and 5 Fuel Trim and Oxygen Sensor Testing Chapter 6 Temperature Sensor Thermistor Circuit Tests Chapter 7 Potentiometer-position sensor tests TPS EVP APP VAF. Locate your vehicles air box and use a screwdriver to pluck it out.

Turn the ignition of the car off.

How To Tell If Your Mass Air Flow Sensor Is Bad On Your Car Youtube