For you FI guys.
How quickly should the CHT get up to operating temperature? You know, how quickly from 2.5Kohms @ 68 deg.F to 100 ohms or what ever it is at "operating temperature".
I need to test mine again, but I'm wondering if mine is dropping to fast.
Full Version: TS2 operating temps
I have exactly the same question. Why?
My 1.8 L-jet was running badly (low and irregular idle, decreased acceleration) the last two weeks in Italy; the typical temperature over there was 36 degrees Celcius (contrary to a modest 20 degrees back in Holland).
The temperature gauge was in the (upper) fourth quarter range while it is typical in the third quarter range.
I have heard of a too low resistance of TS2 at high temperatures producing a lean mixture.
What do you Californian and Florida guys say to this?
My 1.8 L-jet was running badly (low and irregular idle, decreased acceleration) the last two weeks in Italy; the typical temperature over there was 36 degrees Celcius (contrary to a modest 20 degrees back in Holland).
The temperature gauge was in the (upper) fourth quarter range while it is typical in the third quarter range.
I have heard of a too low resistance of TS2 at high temperatures producing a lean mixture.
What do you Californian and Florida guys say to this?
Test results of my TS2:
@ 15 deg.Celsius (which is below 68 deg.F) I measured 1.8 kOhm quickly dropping to 50 Ohms after driving for 10 minutes when the oil temperature gauge was still within the first quarter of the scale.
I interpreted this as a too low resistance, ie., a worn TS2 and ordered a new one.
Hopefully this will correct the low and irregular idle and rough running engine at high engine temperatures.
@ 15 deg.Celsius (which is below 68 deg.F) I measured 1.8 kOhm quickly dropping to 50 Ohms after driving for 10 minutes when the oil temperature gauge was still within the first quarter of the scale.
I interpreted this as a too low resistance, ie., a worn TS2 and ordered a new one.
Hopefully this will correct the low and irregular idle and rough running engine at high engine temperatures.
Adjunct to previous postings:
I put a 1 kOhm potentiometer (electrical resistance) between the old TS2 and its connector; turned it to about 0.3 kOhm (300 Ohm). A 0.2 kOhm value was still too low in MPO.
This dramatically improved engine performance; cold and hot starting is better, idle is definitely more regular, and acceleration has improved. What it will do to gas mileage I can only guess...
Still curious to what a new TS2 will do, but it hasn't arrived yet. I found out that TS2 has a so called NTC or negative temperature coefficient and wears over time so that resistance will decrease.
I put a 1 kOhm potentiometer (electrical resistance) between the old TS2 and its connector; turned it to about 0.3 kOhm (300 Ohm). A 0.2 kOhm value was still too low in MPO.
This dramatically improved engine performance; cold and hot starting is better, idle is definitely more regular, and acceleration has improved. What it will do to gas mileage I can only guess...
Still curious to what a new TS2 will do, but it hasn't arrived yet. I found out that TS2 has a so called NTC or negative temperature coefficient and wears over time so that resistance will decrease.
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