Hi, I think it should kick in around 104 as standard, or 92 if you have the 190 ECU. This is measured by the brown sensor at the ECU so might vary slightly from what you're seeing on the dash (blue sensor feeds the stack).
Topics relating to the Lotus Exige S1 (series 1)
Yes, so I believe it’s the standard cut-in temp (102-104 C) for the 177 bhp, and 92C cut-in for the 190 bhp ECU; cut-out will be a few degrees less.
If you’ve got an OBD reader plugged in that will give you the exact temperature that the ECU is seeing. If you’re going by the Stack temperature, it may show 3 or 4 degrees difference, and read high if there is any electrical load.
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