What is K-Jetronic system?

The main goal of K Jetronic system is to continuously meter fuel in proportion to the amount of air at the intake stroke. The system measures and analysis the air flow and takes into account all changes in the engine’s operation to reduce the toxicity of the exhaust gases by the operation.

How does K-Jetronic work?

The K-Jetronic system consists of injection valves which inject the fuel continuously into the intake ports where it is mixed with the air. When the intake valves open, the air-fuel mixture is drawn inside the combustion chamber. Electric Fuel Pump: When the engine is switched ON, the electric motor drives the pump.

What is the difference between K-Jetronic and KE-Jetronic?

KE-Jetronic is a combined mechanical-electronic gas injection control system with a closed-loop lambda control. As can be inferred, the essential difference between K-Jetronic i KE-Jetronic The system has an encoder and a control unit that processes the data received from the encoder.

How do you adjust a Mercedes fuel distributor?

Start by turning the screw clockwise 1/64th a turn then try to start the car. To make sure, you need a 3mm hex screw. Put it into the air metering hole and push down until you get resistance. Then turn the screw GENTLY with a small amount of downward pressure.

How does K jet work?

The fuel distributor is mounted atop a control vane through which all intake air must pass, and the system works by varying fuel volume supplied to the injectors based on the angle of a moving vane in the air flow meter, which in turn is determined by the volume of air passing the vane, and by the control pressure.

How does Bosch motronic work?

x was one of the first digital engine-management systems developed by Bosch. These early Motronic systems integrated the spark timing element with then-existing Jetronic fuel injection technology. If the engine is naturally aspirated, an air temperature sensor is located in the air flow meter to work out the air mass.

How does a fuel distributor work?

As the airflow increases, the fuel distributor automatically increases the flow of fuel to the injectors to keep the fuel/air mixture correctly balanced. From the accumulator , the fuel passes through a paper element filter and then feeds into the fuel-metering control unit, also known as the fuel distributor .

What is the fuel injector?

The fuel injector injects/sprays fuel into the intake manifold at a very precise angle. Within the intake manifold, air and fuel mix. The air-fuel mixture is compressed in the combustion chamber, igniting the chemical reaction required to power your engine.

What is a motronic system?

Motronic is the trade name given to a range of digital engine control units developed by Robert Bosch GmbH (commonly known as Bosch) which combined control of fuel injection and ignition in a single unit.

What does an engine management system do?

The engine management system is the arrangement of the devices for controlling a vehicle’s engine. If the car is stolen, the unit will block the vehicle’s engine management system and prevent the engine being restarted. The engine management system shuts down four of the eight cylinders when the power isn’t needed.

How can you tell if you got a bad fuel injector?

The most common sign of a bad fuel injector is the check engine warning light, which appears on the dashboard. As soon as an injector isn’t doing what it should, this light will come on. (In other words, if it’s adding too much or too little.)

How does the K-Jetronic-lambda control unit work?

On K-Jetronic-lambda, the frequency valve works in conjunction with the oxygen sensor and K-Jetronic control unit in an effort to produce K-Jetronic’s ideal 14.7:1 air-fuel mixture ratio for maximum fuel economy and emissions control. The oxygen (lambda) sensor sends electrical signals to the control unit based on the oxygen content in the exhaust.

What does K stand for in Jetronic system?

Mechanical fuel injection, ‘K’ stands for German: “Kontinuierlich”, meaning continuous. Commonly called ‘Continuous Injection System (CIS) in the USA. K-Jetronic is different from pulsed injection systems in that the fuel flows continuously from all injectors, while the fuel pump pressurises the fuel up to approximately 5 bar (73.5 psi ).

How does a K-Jetronic fuel injection system work?

K-Jetronic is a BOSCH mechanical continuous-fuel gas injection system that requires no control. It is divided into three main functional areas: air flow measurement, fuel supply and fuel intake. Measurement of air flow or amount of intake air into the engine was controlled by a gas damper and measured by an air flowmeter.

What’s the name of the closed loop lambda control system?

A variant of K-Jetronic with closed-loop lambda control, also named Ku-Jetronic, the letter u denominating USA. The system was developed to comply with U.S.A. state of California’s California Air Resources Board exhaust emission regulations, and later replaced by KE-Jetronic .