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Old 05-21-2007, 02:59 AM
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Trevor Trevor is offline
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Hi Phil,

You are way out of my league on this, but it would appear that you are assuming that an analogue voltage signal from the TPS, comprises the input component and can be directly related.

The manual shows a quite wide tolerance in respect of correct voltage under test. I would not expect otherwise. It would be likely that the voltage is only presented as a means of testing.

It is possible/likely that the TPS comprises part of an interface circuit. This could take the form of a bridge or an operational amplifier (A single IC), so that the final output, is in the form of an accurate variable, as the result of comparison with a known value.

I am likely off the track, but you have called for ideas.
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