If it doesn’t sense the crankshaft moving the system will not even operate. This sensor is actually the key part of the system.Typically, if the engine is cold then the ECM will know to open the injectors for a longer period to increase the fuel delivery, much like an automatic choke on a carburettor. These sensors measure the engine coolant and intake air temperatures.This is usually referred to as the Lambda=1 value. If, for example, the oxygen levels are incorrect, the ECM is instructed to vary the fuel supply until it reaches the desired level. This sensor is fitted in the exhaust and measures the oxygen content of the burnt gases.This is the sensor that constantly measures the movement and position of your accelerator pedal.This device measures the amount of air being drawn into the engine so that the fuel delivery can be calculated to mix with the air in the required quantities.With these systems fuel is injected directly into the engine’s combustion chambers at extremely high pressures. Often called DGi or GDi, these letters stand for Direct Gasoline Injection.Multipoint, more sophisticated and efficient, instead has an injector for each cylinder, also located in the inlet manifold.One injector only, located in the inlet manifold of the engine, where a carburettor would normally be, is called Single point injection.The ECM allows for better combustion of all the fuel entering the engine and also controls the ignition. The fuel is ‘squirted’ into the engine at high pressure and at a pre-determined rate by electronically controlled injectors. This makes the engine more efficient, economical, less polluting and more powerful. This information is then processed and the end result is that of the fuel being delivered to the engine in precisely the correct amount at any given time. These sensors measure the speed and the temperature of the air intake, the speed and position of the crankshaft. The system works by using sensors located on the engine. Diesel engines now also have Engine Management System controlling the fuel being injected. There are several types of system and each manufacturer has their own particular variation. This is when one of our skilled technicians can be of help, since it requires specialist knowledge and test equipment to diagnose any faults that may be in the system. The downside is that if it does go wrong it can be very difficult and expensive to put right.
The Engine Management System controls the whole of the combustion process, making the engine more efficient and less polluting than ever before. It is the brain of the car that controls the fuel supply and the ignition by combining the two separate functions into one main system. The most important one to be built into vehicles has to be the Engine Management System. Most of today’s vehicles are controlled by electronics with more devices being developed and fitted to vehicles each year. We at PMC of Pinner have the most advanced and sophisticated diagnostic tools for all makes and models. Warning lights are there to alert you to problems so ignoring them is not advised as it can put your safety and the safety of others at risk.
However, if the warning light is highlighting a more serious problem, we can provide you with a no obligation quote to repair your vehicle. Most of the time, the fault can be fixed fairly easily. Our highly skilled mechanics have the latest diagnostic equipment that covers all makes of car, which can be plugged into your vehicle’s system to analyse why a warning light has come on. However, if it is more serious call us on 020 8868 0088. Often you can check your car handbook and this will help you to resolve the issue.
So never ignore a warning light, and take action straightaway. This can range from a faulty light bulb or low washer fluid, to a potentially more serious problem with your brakes or engine. All vehicles will have a variety of warning lights, which are there to alert you to a range of possible problems with your vehicle.
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