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Hello again all,
I've been configuring the inputs on my MaxxECU Mini, my (unreliable) supplier had informed me that the IAT & CLT senders were both GM manufactured. However (referring to the Stand Alone Tuning Module) this gave a temperature difference between the air & coolant of around 10 deg/c, this after the engine was allowed to cool for 24hrs. The ambient temperature is around 20 deg/c, the IAT registers 19.5 deg/c. I've now selected from the dropdown box Bosch NTC for the coolant sensor and it now registers within 1 deg/c of the IAT.
Would any of you suggest this is correct, or should I use a more specific method of determining which sender I have?
There are no visible part numbers on the sender that I can find.
Thanks in advance,
Richard.
Richard,
There are lots of "GM style" knock off parts out there, and some do use Bosch NTC scaling, so you've taken a good guess at it using known ambient temperature.
To be more confident you'd have to test the sensor hot with a known temperature to confirm it will read correctly when the engine is warmed up.
For example a bench test using water boiled on a stove, referencing a cooking thermometer or another automotive sensor of known scaling.
Thanks Mike,
Instead I've purchased a known Bosch sensor, yet to fit it though.
