Need some help to trouble shoot error code #9 for the Water Thermistor
I've been out of town and letting my daughter drive my Miata (91 BRG) to school (all the guys think its cool that she can drive a manual). Anyway, I get home and find out that the check engine light has been coming on. It comes on when the engine is first stated and then goes off after driving for some time. I had thought it may due to fouling somewhere since my daughter's drive to school is very short. However, I checked the diagnostic code and it shows #9 for the Water Thermostat.
Miata.net does show where the thermistor is located (behind the engine where you can't see it), but doesn't talk about how to check or replace the thermistor. Would appreciate some advice on how to check and replace the thermistor.
Thanks,
Gus (91 BRG)