The 8 volt supply for the crankshaft position sensor and the camshaft position sensor is provided by the Engine Computer. When that wire is shorted, the computer shuts the supply down to protect it. Once the short is gone, you must turn the ignition switch off, wait a few seconds, then when you turn the ignition switch back on, the 8 volt supply will come back.
The computer should not be damaged, but what you're referring to is called the Powertrain Control Module (PCM).
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Friday, March 5th, 2010 AT 9:49 AM