

You'll notice that the photos (in the image viewer) have the MAF connectors lettered A thru' C (if you look closely at the MAF sensor itself on your D21 Pick Up, you'll see these letters on it too). The mass air flow sensor on your Nissan D21 Pick Up has three wires attached to it. Circuit Descriptions Of The Nissan MAF Sensor Connector I would also recommend using a wire-piercing probe to to test the signal of each wire (to see what this tool looks like, click here: Wire-Piercing Probe. A scan tool (automotive diagnostic scanner) is not needed. The most important tool that you're gonna' need is a digital multimeter (or an analog multimeter), this bad boy doesn't have to be an expensive one. A tremendous lack of power upon acceleration.MAF sensor malfunction that DOES NOT light up the check engine light (CEL).MAF codes that light up the check engine light (CEL) on your instrument cluster.This list covers the majority of symptoms I've seen with this type of Nissan mass air flow sensor: Common Symptoms Of A Bad Nissan MAF Sensor You can find this tutorial in Spanish here: Prueba: Sensor de Flujo de Aire (MAF) 2.4L Nissan D21 Hard Body (1990-1995) (at: ).

How To Test The Nissan MAF Sensor: Sentra 1.8L 4 cyl.

