Audi Tt Coolant Temperature Sensor Symptoms

The modified signal returns to the ecm as the engine coolant temperature input.

Audi tt coolant temperature sensor symptoms. The sensor uses a thermistor which is sensitive to the change in temperature. Your temperature gauge doesn t move your engine overheats without warning your radiator fans don t switch on or they don t switch off. Hi sam temp sensor feeds code 49c ecu dash gauge so will not affect the amount of heat from heater. Change your temp sensor 1st as your erractic readings appear to be temp sensor prob.

Different brands and car manufacturers have a different ways of placing the coolant temperature sensor depending on the car design. It is triggered when your audi q5 s coolant temperature fails to reach the proper operating temperature. It s a generic powertrain code which means that regardless of who manufactured the vehicle it ll have the same meaning 1996. Typically the coolant temperature sensor will be located in the coolant pipe.

These symptoms include failure to start rough idle misfiring decreased fuel economy and the service engine soon light. If code 49c still shows low but more consistant coolant temps replace thermostat. Coolant temp sensor replaced 27 jun 2013 12 35 i contacted my three nearest audi dealerships and they all sang the same tune but peterborough had them in stock and also gave me a product code for the rubber seal. This code is thrown when the resistance coming from the coolant temp sensor does not change as the vehicle warms up.

Because temperature plays such a vital role in engine performance calculations any problem with the coolant temperature sensor can quickly translate into an engine performance issues. The sensor modifies a voltage signal from the engine control module. Usually a problem with the coolant temperature sensor will cause a few symptoms that alert the driver of a potential problem that should be thoroughly inspected. There aren t many symptoms with p0128 unless it gets cold.

In most vehicles this is present behind the right cylinder head below the air intake pipe. Audi tt p0118 symptoms. P0117 audi description the engine coolant temperature sensor is used to detect the engine coolant temperature.