Bosch Mechanical Gasoline Fuel-Injection System PDF

Bosch Mechanical Gasoline Fuel-Injection System PDF Free Download scr1

Mechanical Gasoline Fuel-Injection System with Lambda Closed-Loop Control K-Jetronic

Since their introduction, the Jetronic fuel-injection systems have proved themselves millions of times over under the harsh conditions of everyday driving.

This success is a result of the advantages which fuel injection can offer when considering today’s demands for economy, performance, and cleaner exhausts. The K-Jetronic is a mechanical system in which the fuel is continously metered in accordance with the amount of air drawn in by the engine. Using the Lambda sensor together with additional equipment for the Lambda closed-loop control facility, the K-Jetronic can already comply today with the exhaust-gas regulations of tomorrow. The construction and principle of operation of the K-Jetronic is dealt with in this Technical Instruction manual.


The engine’s fuel requirements
Air-fuel ratio
Excess-air factor

Fuel-management systems
Electronically controlled systems
Mechanical systems


Fuel supply
Outline of system
Electric fuel pump
Fuel accumulator
Fuel filter
Primary-pressure regulator
Fuel-injection valve

Fuel management
Mixture-control unit
Air-flow sensor
Fuel distributor
Control pressure
Differential-pressure valves
Mixture formation

Mixture adaptation
Cold start
Load conditions
Acceleration response
Influencing the air-fuel mixture

Electrical circuitry

Exhaust-gas techniques
Exhaust-gas composition
Catalytic aftertreatment
Lambda closed-loop control

Installation schematic

Language: English
Format: PDF
Size: 177 Mb
Free download Bosch Mechanical Gasoline Fuel-Injection System PDF