Replacing K-JET with Microsquirt on a '80 Volvo 240 and looking to find a coolant temp sensor option that will easily replace the old K-Jet thermal time switch, which already has a nice M14x1.5 threaded hole in the head. Anyone have any recommendations for a coolant temp sensor that will thread in which they know the characterization for? A couple quick searches does find some Bosch sensors with the appropriate threads, but no info on their characterization.
Thanks!
Brian
M14x1.5 Coolant Temp Sensor
Moderators: jsmcortina, muythaibxr
Re: M14x1.5 Coolant Temp Sensor
Put those Bosch numbers overhere.
Maybe someone already has good values.
Maybe someone already has good values.
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Re: M14x1.5 Coolant Temp Sensor
It looks like it uses the standard Bosch temperature curve. The measured values at the temperatures listed in the spec sheet match the values in the temperature curve.
Datasheet:
http://apps.bosch.com.au/AAExtranet_Tec ... 801300.pdf
Bosch Temperature Curve:
http://www.bosch-motorsport.com/media/c ... 739pdf.pdf
It also appears to use a Bosch 1 928 403 874 connector.
https://www.bmotorsports.com/shop/produ ... gd4s61d7l4
Datasheet:
http://apps.bosch.com.au/AAExtranet_Tec ... 801300.pdf
Bosch Temperature Curve:
http://www.bosch-motorsport.com/media/c ... 739pdf.pdf
It also appears to use a Bosch 1 928 403 874 connector.
https://www.bmotorsports.com/shop/produ ... gd4s61d7l4
I'm in the VA/DC area! Let me know if I can help you locally! I offer tuning and troubleshooting services.
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Email me directly at CRSTune@gmail.com
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'92 Nissan 240sx, KA24DET, GT2860RS, MS3X, Coil-on-Plug
http://www.msextra.com/forums/viewtopic ... 37&t=64269
Email me directly at CRSTune@gmail.com
Personal Vehicle:
'92 Nissan 240sx, KA24DET, GT2860RS, MS3X, Coil-on-Plug
Re: M14x1.5 Coolant Temp Sensor
That is some awesome information...thanks for the links!
Re: M14x1.5 Coolant Temp Sensor
So it appears that the original linked sender was not readily avialbale in the US. But we found a second BOSCH sensor that is available in the us: Bosch 0 280 130 037. This has M14x1.5 thread and was available on Amazon, FCP, and several other places. Fits perfectly and was cheap at $20 or so. We measure the resistance and got:
Temp (F) Temp(C) Resistance (measured)
34 1.111111111 3590
70 21.11111111 2281
139 59.44444444 715
204 95.55555556 219
Temp (F) Temp(C) Resistance (measured)
34 1.111111111 3590
70 21.11111111 2281
139 59.44444444 715
204 95.55555556 219