Picture Gallery

Search For: 

Others

The calibration module on many Ford computers contains a system PROM.
Views: 377
Filesize: 21.65kB
Date: May 30, 2017
 Typical ignition timing map developed from testing and used by the vehicle computer to provide the ...
Views: 393
Filesize: 19.47kB
Date: May 30, 2017
 Many electronic components are used to construct a typical vehicle computer. Notice the quantity of ...
Views: 459
Filesize: 556.22kB
Date: May 30, 2017
 Both the top and bottom pattern have the same frequency. However, the amount of on-time varies.
Views: 402
Filesize: 10.05kB
Date: May 30, 2017
A typical module-controlled high-side driver (HSD) where the module itself supplies the electrical ...
Views: 409
Filesize: 58.66kB
Date: May 30, 2017
 A typical low-side driver (LSD) which uses a control module to control the ground side of the relay ...
Views: 455
Filesize: 58.05kB
Date: May 30, 2017
 A typical output driver. In this case, the PCM applies voltage to the fuel pump relay coil to ...
Views: 421
Filesize: 50.2kB
Date: May 30, 2017
 A replaceable PROM used in an older General Motors computer. Notice that the sealed access panel ...
Views: 446
Filesize: 632.49kB
Date: May 30, 2017
A potentiometer uses a movable contact to vary resistance and send an analog voltage to the PCM.
Views: 386
Filesize: 24.23kB
Date: May 30, 2017
 All computer systems perform four basic functions: input, processing, storage, and output.
Views: 415
Filesize: 36.16kB
Date: May 30, 2017
 A secondary waveform of a Ford 4.6 liter V-8, showing three sparks occurring at idle speed.
Views: 357
Filesize: 28.44kB
Date: May 30, 2017
 A dual-trace scope pattern showing both the power and the waste spark from the same coil ...
Views: 373
Filesize: 65.21kB
Date: May 30, 2017
The relationship between the height of the firing line and length of the spark line can be ...
Views: 423
Filesize: 136.18kB
Date: May 30, 2017
 An upward-sloping spark line usually indicates a mechanical engine problem or a lean air–fuel ...
Views: 416
Filesize: 15.5kB
Date: May 30, 2017
 A downward-sloping spark line usually indicates high secondary ignition system resistance or an ...
Views: 477
Filesize: 8.55kB
Date: May 30, 2017
 Display is the only position to view the firing lines of all cylinders. Cylinder 1 is displayed on ...
Views: 353
Filesize: 45.4kB
Date: May 30, 2017
Raster is the best scope position to view the spark lines of all the cylinders to check for ...
Views: 408
Filesize: 101.51kB
Date: May 30, 2017
 Typical secondary ignition pattern. Note the lack of firing lines on superimposed pattern.
Views: 458
Filesize: 29.85kB
Date: May 30, 2017
 Drawing shows what is occurring electrically at each part of the scope pattern.
Views: 387
Filesize: 51.41kB
Date: May 30, 2017
 A single cylinder is shown at the top and a four-cylinder engine at the bottom.
Views: 384
Filesize: 142.57kB
Date: May 30, 2017
Pages: 1 ... 32 33 [34] 35 36 ... 120
Return to Gallery