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940 lambda and catalyst replacement 900 1991

posted by  Chris Mullet on  Sun Nov 4 20:47 CST 2018
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last visit: Fri Oct 24 09:08 CST 2014
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If you have a cooking thermometer, an ohm meter, and a way to heat up some water, you can verify if the coolant temperature sensor is good or bad. According the 700/900 FAQ temp vs resistance values are:

32F (0C)-- about 6000 ohms within a range of +/- 10%
68F(20C) -- about 2300 ohms
104F(40C) -- about 1300 ohms
140F(60C) -- about 600 ohms
176F(80C) -- about 300 ohms
212F -- about 190 ohms

I can’t remember if the Bosch and Regina systems use different sensors nor does the info in the FAQ differentiate. I’m guessing you have a Regina car if it’s a non-turbo. But that’s a guess.
--
Current rides: 2005 Volvo S80 2.5T, 2003 Volvo V70 2.4NA, 1973 Volvo 1800ES (getting ever closer to road worthiness)






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New 940 lambda and catalyst replacement [900][1991]
posted by  OwenF  on Sun Nov 4 03:35 CST 2018 >


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