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http://www.underhoodservice.com/how-engine-coolant-temperature-sensors-influence-the-modern-powertrain/
Sep 09, 2014 · This happens because the PCM has increased fuel delivery to meet the fuel map for the indicated (not the actual) engine operating temperature. If the ECT is indicating a lower than actual operating temperature, it’s possible that the PCM might increase the pulse width to enrich the fuel mixture only until the oxygen sensor provides a data input to the PCM so it can assume fuel control.
https://fuelpumpu.com/blog-how-fuel-trim-is-affected-by-engine-sensors/
Oct 26, 2018 · It adjusts its fuel trim strategy according to the changing inputs from the various sensors on the engine. Contributing Factors to PCM Fuel Trim. The contributing factors used by the PCM in formulating these differing strategies are nearly endless. The coolant temperature sensor signals the engine coolant temperature. If the sensor signals a cold engine, the computer responds by …
https://www.quora.com/What-does-a-fuel-temperature-sensor-do-in-the-engine
Oct 12, 2014 · A fuel temperature sensor senses the temperature of the fuel to determine how much fuel must be sent in so that the emissions and fuel economy are kept in control. Hot fuel is less dense than colder fuel which leads to differences in amount of fuel sent in if the rate of fuel injection …
https://www.quora.com/How-does-a-bad-fuel-temp-sensor-affect-vehicle-performance
Mar 26, 2018 · Some vehicles use a fuel temperature sensor to more precise measure all of the variables that can affect engine performance.. Cold fuel is more dense than hot fuel.. The most efficient ratio of fuel to air is 14.7:1, assuming normal atmospheric pressure.. The engine can only measure the fuel being injected into...
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3707201/
May 31, 2013 · To investigate the effects of fuel temperature on the injection process in the fuel-injection pipe and the combustion characteristics of compression ignition (CI) engine, tests on a four stroke, direct injection dimethyl ether (DME) engine were conducted.Author: Gao Guangxin, Yuan Zhulin, Zhou Apeng, Liu Shenghua, Wei Yanju
https://wheelzine.com/understanding-purpose-of-intake-air-temperature-iat-sensor
What the IAT sensor does is, it helps the ECU modify the timing of sparking and fuel injection to the engine depending on the temperature of the entering air. When replacing a defective sensor, one thing to keep in mind is not to tighten it too much, as this can damage the sensor’s housing or threading.
https://auto.howstuffworks.com/fuel-injection4.htm
The advantage of sequential fuel injection is that if the driver makes a sudden change, the system can respond more quickly because from the time the change is made, it only has to wait only until the next intake valve opens, instead of for the next complete revolution of the engine.Author: Karim Nice
https://www.yourmechanic.com/article/symptoms-of-a-bad-or-failing-coolant-temperature-switch
Jan 06, 2016 · One of the first symptoms associated with a problem with the coolant temperature sensor is poor fuel economy. If the coolant temperature sensor goes bad it can send a false signal to the computer and throw off the fuel and timing calculations. It is not uncommon for the coolant temperature sensor to fail and send a permanently cold signal to the computer.4.9/5(130.5K)
https://dannysengineportal.com/engine-coolant-temperature-ect-sensor-function-failure-and-testing/
Input from the engine coolant temperature (ECT) sensor; may be used by the (PCM) for any or all of the following control functions; Start up fuel enrichment on fuel injected engines. When the (PCM) receives a cold signal from the (ECT) sensor; it increases injector pulse width (on time); to create a richer fuel …
https://www.yourmechanic.com/article/symptoms-of-a-bad-or-failing-oxygen-sensor
Jan 11, 2016 · If the oxygen sensor is going bad, the fuel-delivery and fuel-combustion systems will be thrown off. If a bad oxygen sensor disrupts the air to fuel ratio mixture, or too much fuel is injected into the engine, your vehicle's gas mileage will be reduced.4.9/5(130.5K)
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