The water temp gauge on my son's "91 Cressida never goes over 1/2. If I disconnect the water temp gauge wire,it'll go all the way down. I want to know if itis accurate. Is there a way to trick the needle to go up? I've tried letting it idle without a fan, but it doesn't move higher than half and I don't see any overheating symptoms. can I maybe add a few volts to the wire? thanks.