It's telling you that your vehicle is not reaching normal operating temperature quickly enough. You most likely need to replace the thermostat.
Replace the cam sensor
Trouble code P1281 means: Cooling System Performance
The code is for "engine taking too long to get warmed up." Most of the time this will be because of a coolant thermostat staying open and not letting the motor reach operating temperature fast enough for the all knowing computer.
Duct tape
You replace the torque converter.You replace the torque converter.
1998 Dodge Caravan Speedometer Has a second connector attached with a white pigtail. What is that used for and will it operate without it?
Usually you replace the egr valve.
Trouble code P1281 typically indicates an issue with the engine coolant temperature sensor or its circuit, often related to overheating or incorrect readings. To fix it, start by checking the coolant level and the condition of the coolant; replenish or replace it if necessary. Then, inspect the coolant temperature sensor and its wiring for damage or corrosion, replacing the sensor if needed. Finally, clear the trouble code and monitor the vehicle to ensure the issue does not return.
P0125, engine temperature too low for closed loop. The usual failure is the thermostat.
You need to BClear. What is wrong with it?
There's a TSB on this problem.
Fix the cause, or keep adding fluid.