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Unclejesse

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About Unclejesse

  • Birthday 09/30/1978

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  1. The inspection of the flywheel is called for in a pinpoint test to diagnose a bad crank sensor. The ppt nowhere tells you to inspect the tone wheel/reluctor. It is possible to use gears for speed sensor tone wheels. I went to a trans class for ford just last week where they used the teeth on the spur gear to get output shaft speed. I mean, a gear is basically the same shape as most tone wheels.
  2. There is only one dtc available in the pcm for the crankshaft position sensor. Quickly following it they have you inspect the flywheel for damaged teeth. This would lead me to believe that you are right about the ckp reading flywheel teeth. BUT, I cannot see how this can be for crankshaft position, and instead be purely crankshaft speed. The flywheel teeth would need to have some sort of indexing tooth, yet still be able to be run from the starter.
  3. that text I posted would lead me to believe that the pcm gets cam and crank position both from the distributor. So I don't know why it would have crank position on the flywheel as well. Are you sure it wasn't just turbine shaft speed for the transmission?
  4. as quoted from the 02 villager pced: The camshaft position (CMP) sensor (Figure 1) is mounted inside the distributor housing. The CMP sensor has a rotor plate and a wave-forming circuit. The rotor plate has 360 slits for 1 degree signals and 6 slits for 120 degree signals. When the rotor plate passes between the light emitting diodes (LEDs) and the photo diode built into the wave-forming circuit, an input signal is generated and sent to the powertrain control module (PCM). This signal notifies the PCM of the engine speed at 1 degree intervals and the crankshaft position at 120 degree intervals. I also have a picture of the distributor tone wheel, I just need to figure out how to post it
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