{"id":23482,"date":"2021-09-28T12:24:12","date_gmt":"2021-09-28T12:24:12","guid":{"rendered":"https:\/\/www.dubizzle.com\/blog\/cars\/?p=23482"},"modified":"2021-12-24T12:27:02","modified_gmt":"2021-12-24T12:27:02","slug":"bad-car-computer-symptoms","status":"publish","type":"post","link":"https:\/\/www.dubizzle.com\/blog\/cars\/bad-car-computer-symptoms\/","title":{"rendered":"Car Computer Damage Signs"},"content":{"rendered":"\n

Vehicles are equipped with a computer also known as Engine Control Unit (ECU) that controls a lot of major functions. Initially, automobiles used to be purely mechanical – but computers became a prominent feature during the 1980s. This computer is responsible for automatically regulating and controlling systems and subsystems to support efficient driving. <\/p>\n\n\n\n

Car computers can malfunction due to a lot of reasons. Since they control so many other parts and functions, malfunctioning in the car computer can cause serious problems that may affect the drivability. <\/p>\n\n\n\n

Here are a few signs that indicate an issue in a car\u2019s computer. <\/p>\n\n\n\n

Symptoms of Car Computer Damage<\/h2>\n\n\n\n

Malfunctioning in a car computer can be recognized by many symptoms. In this guide, we have listed the most common symptoms that reflect car computer damage. <\/p>\n\n\n\n

Stalling and Misfiring<\/h3>\n\n\n\n

Early symptoms of car computer damage are stalling when idle and engine misfires. This happens when the ECU fails to maintain the fuel to air ratio in the engine. However, the stalling or misfire is not consistent. It will happen occasionally but should be a cause of concern. <\/p>\n\n\n\n

\"Engine
Car not working due to bad computer<\/figcaption><\/figure>\n\n\n\n

Apparent Loss of Ignition Pulse<\/h3>\n\n\n\n

The car computer is responsible for providing an ignition pulse to the engine. The data for ignition pulse is collected from the crankshaft or camshaft position sensor. When an ECU is not working properly, it will not be able to process the accurate data and fails to provide an ignition pulse. <\/p>\n\n\n\n

Increased Mileage<\/h3>\n\n\n\n

Increased fuel mileage is also one of the symptoms of a bad car computer. Disruption in air-to-fuel ratio caused by malfunctioning car computers results in increased mileage. Car computers start sending more fuel for combustion and hence utilize extra fuel to generate the same amount of energy. <\/p>\n\n\n\n

Check Engine Warning Light<\/h3>\n\n\n\n

The \u2018Engine Check\u2019 warning light on dashboard<\/a> is the most frequent way to notify malfunctioning under the hood. Generally, it illuminates to report defects in a car computer\u2019s electric circuit, sensors and electronic components. You have to use specific trouble codes on your car to detect defects in the car computer. <\/p>\n\n\n\n

\"engine
Engine check warning lights illuminate on dashboard<\/figcaption><\/figure>\n\n\n\n

Electric Burning Smell<\/h3>\n\n\n\n

ECU components can wear out and burn due to excessive load or resistance. This causes a burning smell from the engine control unit. In the worst cases, burn marks are also visible in the ECU.<\/p>\n\n\n\n

Car Won\u2019t Start<\/h3>\n\n\n\n

If the car computer fails to maintain the air-to-fuel ratio and timing belt<\/a>, the car will not start. A bad car computer will make a car stall or require more than ten attempts to start the engine. If you are facing these issues, it is a faulty car computer which left unfixed can lead to no engine start at all.  <\/p>\n\n\n\n

Loss of Acceleration<\/h3>\n\n\n\n

The transmission control unit and car computer work together to maintain smooth transition and acceleration. When the car computer malfunctions, it fails to send adequate or timely data required by the transmission. This wrong data hurdles the coordination between the systems and results in rough transition or complete loss of acceleration while driving.  <\/p>\n\n\n\n

Causes of Bad Car Computer<\/h2>\n\n\n\n

Car computer is prone to different internal and external threats that can cause it to malfunction. We have enlisted the most common reasons that result in improperly functioning car computers.<\/p>\n\n\n\n

\"Mechanic
Mechanic checking car computer to identify flaws<\/figcaption><\/figure>\n\n\n\n