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What Does the ECM Control?

Rocky by Rocky
September 13, 2021
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What Does the ECM Control?
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What sorts of things rely on the crankshaft position indicator? Is “tricking” a lambda probe a helpful thing? And in general, who turns on the Check engine?… – electronic motor control systems raise various questions for car owners.

For optimal running conditions for any internal combustion engine, it is required to ignite a certain amount of the fuel-air mixture at the right time. The more effectively this process is organized, the better the indicators of power, economy and toxicity.

Before the arrival of microelectronics, the problem needs to be resolved using good car mechanic in Gurgaon, complicating carburetors and ignition distributors. However, then there was a “coup”: the ECM seized power over the engine – an electronic engine management system. It comprises an electronic control unit (ECU), sensors of engine and car operating parameters, and actuators.

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The transformation of vehicles into “computers on wheels” has given rise to a kind of infantilism among various car owners. No wonder: if the electronic brain commands everything, what’s the point of competing with it? Car owners pressed the button, it worked – let’s go. If it doesn’t work – we grab the smartphone and ask for help. However, not everyone adheres to such a position: questions about the management system continue to appear. Here, we tried to answer the most prominent ones:

What does the ECM control?

In the last decade, on cars with electronic injection, the computer system only controlled the supply of fuel through the injectors and air through the idle speed regulator and timely sparking on the spark plugs. Later, its worries increased. Now it controls the operation of one or more phase regulators, throttle valve, a thermostat, electric cooling fans, turbocharger performance, adsorber purging and exhaust gas recirculation.

The ECM also interacts with automatic transmission, security systems – ESP, comfort systems and anti-theft systems in modern cars.

Do all ECM cars use a Crankshaft Position (CKP) sensor?

DPKV is one of the essential sensors that provide information to the control unit about the crankshaft speed and the position of pistons at every moment. In most car engines, even with minor deviations in the state of the wiring sensor, it responds to the unstable operation and the inclusion of the Check engine indicator.

Moreover, when the sensor fails, the engine usually stalls and does not even startup. In such instances you need an immediate visit to the car mechanic in Gurgaon. But, there are also such engine control systems that, when the DPKV fails, completely replace the information from it with signals from the camshaft position sensor.

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Mass airflow sensors (MAF) were widely used until recently, but they have now disappeared. So how does the motor work?

They have not entirely disappeared. On comparatively expensive cars, DMRVs do not give up their positions. Especially in the case of using entirely separate intake tracts for each “half” of the V-shaped engine. Then both the sensors are installed. Mass airflow sensors determine the amount of airflow by how it cools the sensitive part. The stronger the draft, the better the cooling.

About the Company:

At Getpitstop, we provide all sorts of significant and essential car repairs. In addition, our services are very distinctive because of the use of new devices and modern tools that our professional mechanics use to repair your car.

Rocky

Rocky

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