Detroit 60 ddec 4 low coolant sensor

Unplug it at the coolant reservoir. If the yellow CEL stays on, jump the plug with a paperclip. Should turn it off. Since you already replaced the sensor and wiring, results may be the same. Depending on how much wiring you replaced, it could have a break further away from the sensor. Usually break at the plug from the fan blowing it around when engaged or somewhere along the valve cover from age/heat. Sometimes the sensor gets coated with oil or crud in the coolant and only lasts a short while. If so, try cleaning it. I’m sure it can be disabled in the ecm. I personally wouldn’t. Mainly because of the cost, but also because it’s such a good safeguard against ruining the engine. They’re a PITA. I’ve had so many problems with them, I’ve often considered installing a switch to disconnect it till I can fix it. Unplugging it does the same thing.