No. I would say the surging idle, or not wanting to idle at all would be your tps(throttle position sensor). In some cases you can take them off an clean them an get lucky. other cases there pop rivited in, so by then you mite just as well buy a new one, for there not very expencive. But it has nothing to do with your temp sensor. Best of luck, and hope my information was helpful.
erratic erratic
Your thoughts are Erratic. erratic things do not last much.
Your behaviour has been very erratic today.The computer is being erratic.
The police pulled him over for his erratic driving.His erratic behaviour made him suspicious to the border guard.The walk was that of an erratic, drunk man.The erratic sea shook the entire ship.
"The patient had an erratic heartbeat." "The receptionist gave erratic and misleading directions to the patient." "His erratic behavior was a concern to the other students." "The hurricane travelled on an erratic path across the Caribbean."
Now.. not knowing what erratic is to you, but with personal experience, you very well could have a cracked head gasket, or you could need a new water pump, or your thermostat could be in need of replacement.
you need to clear the code
It sounds like a blown head gasket to me. Take it to someone that has a exhaust gas measuring tool and they can tell you for sure if it is the head gasket.
Erratic adj irregular, inconsistent, wandering around. Erratic noun an erratic is a rock found where it does not belong. Many millenia ago it was carried on a glacier from where it originated to where it was found.
The word erratic is an adjective.
His behavior was so erratic that we assumed he was on drugs. Erratic winds made it difficult to keep the boat on course. My driving is erratic if I try to text behind the wheel.
The erratic movement made it difficult to catch the kitten. His speech was erratic and made no sense. The erratic problem made it almost impossible to diagnose.