While putting my new 3VZE in my '92 T4R I noticed that someone had put a 2k Ohm resistor in the circuit of my coolant temp sender. They literally just crimped down male and female terminals on the resistor to add it in...surely that isn't stock? I haven't read anything about it on one of these so what gives? Any ideas why it was there? And should I leave it/replace it or remove it?