p0128 dodge charger

The P0128 code in a Dodge Charger typically indicates a problem with the engine coolant temperature (ECT) sensor or thermostat. This code is triggered when the engine control module (ECM) detects that the engine coolant temperature is below the expected range within a specified time after engine start-up.

To diagnose and fix this issue, you can try the following steps:

1. Check the coolant level: Make sure the coolant level is at the appropriate level. If it's low, refill it and check for any leaks.

2. Check the ECT sensor: Inspect the ECT sensor and make sure it's properly connected and not damaged. If it's faulty, replace it.

3. Check the thermostat: If the ECT sensor is working fine, then the problem may be with the thermostat. A malfunctioning thermostat can cause the engine to run too cold, which can trigger the P0128 code. Check the thermostat and replace it if necessary.

4. Check the wiring: Make sure there are no issues with the wiring that connects the ECT sensor to the ECM. Damaged or frayed wires can cause incorrect signals to be sent to the ECM, which can trigger the P0128 code.

If you're not comfortable performing these checks yourself, it's best to take your vehicle to a certified mechanic for diagnosis and repair.