The whole low-fuel indicator and how it sometimes rests and sometimes doesn't has been discussed, theororized and wondered about. But I had a new bit of evidence presented to me the other night.
Heading home I was low on gas, light was flashing. I was stopping but worried about my battery being low. Weighing the risks I decided to stop for a partial fuel-up and leave the engine running (yes, I said it). I carefully poured in 3.5 gallons and when I looked at the dash to record my mileage I noticed the fuel gauge was still flashing low. I finished up my record keeping and the low light was still flashing. Geared back up and took off, half a mile down the road the system finally updated and showed a half tank.
So if the system is only polling the fuel sensors every minute or so is that why sometimes the thermistor will get reset and sometimes it doesn't? The thermistor doesn't just measure the temperature but it's measuring it's own heat dissipation (something it can do faster in liquid it can't do in air). Bit if not being continuously being polled... hmm...
Heading home I was low on gas, light was flashing. I was stopping but worried about my battery being low. Weighing the risks I decided to stop for a partial fuel-up and leave the engine running (yes, I said it). I carefully poured in 3.5 gallons and when I looked at the dash to record my mileage I noticed the fuel gauge was still flashing low. I finished up my record keeping and the low light was still flashing. Geared back up and took off, half a mile down the road the system finally updated and showed a half tank.
So if the system is only polling the fuel sensors every minute or so is that why sometimes the thermistor will get reset and sometimes it doesn't? The thermistor doesn't just measure the temperature but it's measuring it's own heat dissipation (something it can do faster in liquid it can't do in air). Bit if not being continuously being polled... hmm...