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Many fuel-control oxygen sensors are located in the exhaust manifold near its outlet so that the ...
Views: 295
Filesize: 488.06kB
Date: May 30, 2017
 The scan tool can display various voltage but will often show 3.3 volts because the PCM is ...
Views: 339
Filesize: 55.84kB
Date: May 30, 2017
 A single cell wide-band oxygen sensor has four wires with two for the heater and two for the sensor ...
Views: 324
Filesize: 23.59kB
Date: May 30, 2017
 Testing a dual cell wideband oxygen sensor can be done using a voltmeter or a scope. The meter ...
Views: 310
Filesize: 146.64kB
Date: May 30, 2017
When the exhaust is lean, the PCM applies a positive current into the pump cell.
Views: 374
Filesize: 82.24kB
Date: May 30, 2017
 When the exhaust is rich, the PCM applies a negative current into the pump cell.
Views: 286
Filesize: 82.24kB
Date: May 30, 2017
 The reference electrodes are shared by the Nernst cell and the pump cell.
Views: 315
Filesize: 76.33kB
Date: May 30, 2017
 A planar design zirconia oxygen sensor places all of the elements together, which allows the sensor ...
Views: 307
Filesize: 55.19kB
Date: May 30, 2017
A typical heated zirconia oxygen sensor, showing the sensor signal circuit that uses the outer ...
Views: 380
Filesize: 75.42kB
Date: May 30, 2017
 Most conventional zirconia oxygen sensors and some wide-band oxygen sensors use the cup-type ...
Views: 352
Filesize: 92.48kB
Date: May 30, 2017
 When the exhaust is rich, the output of a zirconia oxygen sensor is above 450 mV.
Views: 289
Filesize: 104.5kB
Date: May 30, 2017
 When the exhaust is lean, the output of a zirconia oxygen sensor is below 450 mV.
Views: 299
Filesize: 103.96kB
Date: May 30, 2017
A conventional zirconia oxygen sensor can only reset to exhaust mixtures that are richer or leaner ...
Views: 316
Filesize: 34.34kB
Date: May 30, 2017
 A scope display showing a normal Chevrolet Equinox MAF sensor at idle speed. the frequency is 2,600 ...
Views: 343
Filesize: 85.11kB
Date: May 30, 2017
 Carefully check the hose between the MAF sensor and the throttle plate for cracks or splits that ...
Views: 305
Filesize: 59.52kB
Date: May 30, 2017
 A Karman Vortex air flow sensor uses a triangle-shaped rod to create vortexes as the air flows ...
Views: 797
Filesize: 134.25kB
Date: May 30, 2017
The sensing wire in a typical hot wire mass air flow sensor.
Views: 374
Filesize: 1.49MB
Date: May 30, 2017
 This five-wire mass air flow sensor consists of a metal foil sensing unit, an intake air temperature ...
Views: 357
Filesize: 127.91kB
Date: May 30, 2017
 A typical air vane sensor with the cover removed. The movable arm contacts a carbon resistance path ...
Views: 330
Filesize: 748.6kB
Date: May 30, 2017
 A vane air flow (VAF) sensor.
Views: 275
Filesize: 115.34kB
Date: May 30, 2017
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