Piston speed? Have to say that's a new one to me.
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Had a followup question from the Jeep guy:
Quote:
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Oh, I read it, I was wanting to do it w/ instrumentation, but I Can't do that because my car is before 96. Do you know of any other guages that can monitor this without the plug in?
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Fortunately, we can answer that one.
Pre-OBD2 vehicles like yours can use a custom electronic gauge called the SuperMID. Check this thread for more information:
[CRXMPG FAQ] SuperMID and 1990 Toyota Truck