If you notice that your temperature warning light is on and the fuel mileage is really poor, it may be caused by the sensor.īlack smoke from the exhaust: another side effect of a rich engine is that black smoke (or unburnt carbon from fuel) will be present from the vehicle's exhaust when you accelerate. The side effect of this reaction is that the fuel economy will drastically be cut. This in turn triggers the ECM to either add more fuel or reduce air mixture to create a “rich” situation, designed to cool the cylinders and reduce the potential of overheating. The engine is getting poor fuel economy: when the coolant temperature sensor is not functioning correctly, it tends to relay false information to the engine control module. Noted below are a few of the warning signs that will alert you that the coolant temperature sensor is damaged and needs to be replaced. Before you make the decision to replace the coolant temperature sensor, make sure diagnose some of the warning signs of a faulty coolant temperature sensor. Taking time to properly diagnose the precise cause of the overheating situation is very important to providing a solution and actually fixing what is broken. When a problem occurs with engine heating or overheating, it may be due to one or multiple broken parts. The coolant system on today's cars, trucks, and SUV's is comprised of multiple components that work together to keep your engine running well. Part 1 of 3: Diagnosing a problem with the coolant temperature sensor If you discover that the sensor is failing, you'll have to replace this device by following the step-by-step instructions noted below. When the signal is sent to the ECM, the computer adjusts the vehicles ignition timing, fuel flow, and other factors that trim or enhance performance based on the coolant temperature.ĭue to the fact that engine temperature plays a vital role in the overall performance of any vehicle, having a properly functioning coolant temperature sensor is essential. The coolant temperature sensor (switch) utilizes electrical resistance to measure the coolant's temperature.
#4.3 coolant temp sensor location driver
When the sensor is functioning properly, it will tell your on board computer if the temperature is too high, alerting the driver that a problem exists by illuminating a warning light on the dashboard. The coolant temperature sensor, also known as the coolant temperature switch, is the engine management system that monitors the temperature of the coolant and relays this information to the ECM. One of the most important systems to monitor is the cooling system, which includes the radiator, water pump, radiator fan, coolant lines, and overflow tank. Firmware versions 4.Today's engines monitor virtually every function to ensure your vehicle runs strongly and efficiently every day. The label for each option is specified in the order of rotations for that orientation. NOTE: For internal compasses, AHRS_ORIENT is used. For southern hemisphere, switch increase and decrease. Rolling the vehicle upside down should decrease the MagZ value. When set correctly in the northern hemisphere, pointing the nose and right side down should increase the MagX and MagY values respectively. This value will be ignored unless this compass is set as an external compass. The orientation of the first external compass relative to the vehicle frame. Later versions provide two general custom rotations which can be used, Custom 1 and Custom 2, with CUST_ROT1_ROLL/PIT/YAW or CUST_ROT2_ROLL/PIT/YAW angles.īTN_FUNC1: Button Pin 1 RC Channel function ¶Īuxiliary RC Options function executed on pin changeīTN_FUNC2: Button Pin 2 RC Channel function ¶īTN_FUNC3: Button Pin 3 RC Channel function ¶īTN_FUNC4: Button Pin 4 RC Channel function ¶ Firmware versions 4.2 and prior can use a CUSTOM (100) rotation to set the AHRS_CUSTOM_ROLL/PIT/YAW angles for AHRS orientation. After changing you will need to re-level your vehicle.
This rotates the IMU and compass readings to allow the board to be oriented in your vehicle at any 90 or 45 degree angle. Overall board orientation relative to the standard orientation for the board type. Note: This parameter is for advanced users
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