The P0118 code means that the engine control module (ECM) has detected a voltage signal that’s too high from the engine coolant temperature (ECT) sensor (below). In practical terms, the ECM believes ...

In this video, we explain every car engine sensor, detailing their functions, operations, locations, and implications of failure. We cover OBD2 error codes such as P0335, P0118, and P0131. Sensors are ...

Coolant level sensors may seem small, but they guard against big failures. In this Fun with Fundamentals entry, we break down how these devices keep engines—and engineers—from losing their cool. On a ...

A faulty Engine Coolant Temperature (ECT) sensor may lead the turbocharged 2.0L I4 LSY gasoline engine in certain GM vehicles to run hot or even overheat. To be clear, these vehicles are not under an ...