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Unread 18-11-2005, 10:44
sciguy125 sciguy125 is offline
Electrical Engineer
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Re: tachometer mystery?

Quote:
Originally Posted by Al Skierkiewicz
The first one is easy, the music is too loud. It might be an engine response or it might just be accoustic coupling.
The second one is a prime suspect for a temp sensor gone bad. It probably works above a certain temp and is way off below that temp.
I was thinking that the music thing might be from extra power consumption. The electrical system is connected to the alternator which is connected to the engine.

As for the temp sensor, it just doesn't work at that temperature. When the engine is really cold or already warm, it's fine.
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