How To Test Maf Sensor Gm
How To Test Maf Sensor Gm. In this tutorial, i'll explain the three tests you'll need to perform to find out if it's bad or not. Here are a couple of others:
With the engine at idle, the maf’s pid value should read anywhere from 2 to 7 grams/second (g/s) at idle and rise to between 15 to 25 g/s at 2500 rpm, depending on engine size. Testing for these three signals is easy and i'll take you step by step thru' the whole test. Make sure the meter’s leads are away from moving engine components.
Engine Performance Diagnostics Chapter 12 Page 7.
Power comes from a fuse and in the form of 10 to 12 volts dc. You'll test this gm maf sensor with a multimeter that can read hertz (hz) frequency. Recheck all of your multimeter connections and retest.
No Scan Tool Is Required Or Any Other Expensive Testing Equipment.
Testing to see if the maf sensor on your 3.5l gm equipped car or pickup or suv is bad or not can easily be done with a multimeter. Here is a basic list of the symptoms you'll see when the maf sensor fails on your 3.3l v6 equipped buick or oldsmobile: Chevy cruze sonic engine light on maf.
Confirmed That The Maf Sensor Is Getting Power (Test 1).
Gm uses a frequency or digital type of sensor which will produce signals. Your multimeter registered 12 volts: All you need (to diagnose and troubleshoot the maf sensor) is a digital multimeter capable of reading hertz (hz) frequency.
Your Next Step Is To Make Sure The Maf Sensor Has Ground, For This Next Test Go To:
A maf sensor diagnostic trouble code (dtc) stored in your vehicle computer's memory. Plug in the maf sensor’s electrical connector. Testing for these three signals is easy and i'll take you step by step thru' the whole test.
The Most Obvious One Is That The Check Engine Light (Cel) Will Be On On Your Instrument Cluster And Driving You Nuts.
A defective maf sensor can cause engine stalling, a rough running engine, and a check engine light for trouble codes like code p0171.find out how to test a maf sensor and how to replace a defective one with these tips from our mechanics. Turn the ignition switch to the off position. The very first thing we'll do, to get our mass air flow (maf) sensor diagnostic on the road, is to check that it's getting power.
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