MSefi.com read only forum (Jan.15,2018)

Does anyone here have tried using the factory Mazda IAT and ECT sensors? What are its resistance curve values that I need to enter with Easytherm?

Im using MS1 V2.2...no extra code yet

Particularly the Mazda BP(1800cc DOHC 16-valve) and the Z5(1500cc DOHC 16-valve) from the Mazda 323/Protege...since they share the same ECT(grey colored) except for the IAT

Thanks

Try the Mazda RX-7 defaults option from the file menu in EasyTherm. I seem to recall the sensors on the BP series are the same as the rotaries.

Roger.

Thanks renns

...based on the file menu...selecting RX-7 defaults....the Bias resistor for the ECT is the same value as the GM defaults

but the IAT value for the Bias resistor...changed from 2490ohm to 47000ohm

Do I need to change the resistor R4 in the PCB(IAT) from 2.49K to 47K?

Thanks

Yes, the bias resistor will need to be changed. The curve for the Mazda air temp thermistor is far away from the GM one.

Roger

renns wrote:Yes, the bias resistor will need to be changed. The curve for the Mazda air temp thermistor is far away from the GM one.

Roger

Ok, many Thanks