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Originally Posted by mjannusch
The problem is that the EGT inputs on the AEM are configured to SEND +5V to the sensor and measure the current flow to determine the resistance in the RTD probe to read the temp. (At least that's how I understand it to be - I looked at the problem a while back also).
Therefore you need a device which mimics a thermistor and varies the resistance and not the voltage.
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Understand.
but AEM manual said AEM has two spare 0-5V input...can I use them?