5ktq high 'idle' - another update - getting there!

[E. Roy Wendell IV]

On Oct 31, 2006, at 7:51 AM, Kneale Brownson wrote:

> Since the controller relies on a sensor to "know" the coolant  
> temperature,
> a faulty sensor also could cause the problem, couldn't it?
>

Yes. It's an NTC (Negative Temperature Coefficient) thermistor so the  
resistance goes up as the temperature goes down. Rarely does the  
relationship of resistance versus temperature change and the spec is  
pretty loose anyway. Usually they fail open (infinite resistance)  
which is read as low temperature.

Roy Wendell
erwendell at mac.com
Too many type 44 tq
A pair of MR2s