Punkin has been occasionally throwing a Failure Indicator light (a thermometor in water sign along with the FI words) at startup. The temp light would blink a few times. Then everything would disappear. Then a few starts later she wouldn't want to start. It would take three attempts to start and when she did, she'd run very lumpy. You could smell gas.
Doing some research, I found a thread on here with the exact same symptoms and a faulty temp sensor was the reason. It seems to slowly die, so sometimes it works and sometimes it doesn't. When it doesn't, the computer thinks the outside temp is -40 deg, so it remaps the fuel to winter conditions, thus flooding the engine.
I haven't found much on the actual process to change the sensor. It looks to be accessible from the front opening. I think I read somewhere that you have to drain all the coolant before replacing the sensor. My questions are:
1. Could I quickly pull the old sensor out and quickly stick the new one in without draining the coolant? Obviously I'd loose some coolant doing it this way but not that much.
2. Could I cause a hot spot in a head by doing the quick change?
3. If I refill the system after doing the quick change, would I need to burp the system?