WebSep 9, 2014 · The engine coolant temperature (ECT) sensor provides a good illustration of how many on-board diagnostic strategies have changed. An out-of-range ECT sensor can affect the PCM’s fuel and spark mapping, variable camshaft timing, transmission, radiator cooling fan and evaporative emissions functions, so it’s important to develop an ... WebJul 5, 2024 · The oxygen or lambda sensor is one of the most important and one of the most misunderstood components of a modern fuel injection system. A basic understanding of how the sensor works and how to …

Making Sense of Sensors: The Oxygen Sensor

WebJul 5, 2024 · The oxygen or lambda sensor is one of the most important and one of the most misunderstood components of a modern fuel injection system. A basic … WebApr 4, 2013 · By Larry Carley. April 4, 2013. Oxygen (O2) sensors are part of the engine management system and are used to perform two important functions. The “upstream” O2 sensor (s) in the exhaust manifold (s) monitor the air/fuel mixture, while the “downstream” O2 sensor (s) to monitor the catalytic converter (s). Most O2 sensors are the ... maplewood police non emergency line

Downstream O2 sensor - Does it affect fuel mileage?

WebCommon Check Engine Light Causes: Oxygen Sensor. An oxygen sensor does not have to fail completely to give you problems. On the contrary, even a failing O2 sensor (sometimes called a “lazy” O2 sensor) may … WebJan 14, 2016 · Chances are it's toast, which makes sense at 110,000 miles. My question is - How important is it to replace this sensor? Since it's downstream, I would think that it might not affect fuel mileage, but my internet research is leading to conflicting information. I can get an OEM replacement for about $70, but the question is, would you? WebSo, a bad O2 sensor will affect the engine somehow and it will cause rough idle. Generally, the main function of an oxygen sensor is to measure and balance the oxygen level. So, when this level is misbalanced, the air to … kris hurtownia bhp