Thursday, 13 June 2013

ECT and IAT Calibration

Some notes on the ECT (engine coolant temp) and IAT (intake air temp) sensors.
The following is info I've googled, so I don't know if it's accurate or not...
The voltage is calculated from the 'googled' temp/resistance values based on the 2k7/5V pull-up in the stock ECU.

Temperature, Resistance, Voltage
-20, 16150, 4.28
 40,  1150, 1.49
 80,  330, 0.545

ToDo: Update with some better data when I've found it.

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