1 / 6

FIGURE 14–1 A vane air flow (VAF) sensor.

FIGURE 14–1 A vane air flow (VAF) sensor.

socrates-flavian
Download Presentation

FIGURE 14–1 A vane air flow (VAF) sensor.

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. FIGURE 14–1 A vane air flow (VAF) sensor.

  2. FIGURE 14–2 A typical air vane sensor with the cover removed. The movable arm contacts a carbon resistance path as the vane opens. Many air vane sensors also have contacts that close to supply voltage to the electric fuel pump as the air vane starts to open when the engine is being cranked and air is being drawn into the engine.

  3. FIGURE 14–3 This five-wire mass air flow sensor consists of a metal foil sensing unit, an intake air temperature (IAT) sensor, and the electronic module.

  4. FIGURE 14–4 The sensing wire in a typical hot wire mass air flow sensor.

  5. FIGURE 14–5 A Karman Vortex air flow sensor uses a triangle-shaped rod to create vortexes as the air flows through the sensor. The electronics in the sensor itself converts these vortexes to a digital square wave signal.

  6. FIGURE 14–6 Carefully check the hose between the MAF sensor and the throttle plate for cracks or splits that could create extra (false) air into the engine that is not measured by the MAF sensor.

More Related