L- 28. M.P.F.I.System

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Fuel-air mixture

rich lean

Engine output

Fuel consumption

K-Jetronic

KE-Jetronic

L-Jetronic

LH-Jetronic

Mono-Jetronic

Motronic MP

Motronic M5

Motronic ME 7

M.P.F.I. ;L:8DGL ZRGFo

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Shell

Disc spring

Supportingceramic tube

Connectingcable

Heating element Protective tube

Electric contacts

ZrO2 sensor ceramics

,FdA0F ;[g;Z o

,FdA0F ;[g;Z o

Non-heated lambda sensor

Heated lambda sensor

Lambda sensors - basic types

„LS“ 0 258 001 xxx Non-heated sensors (finger type = 1)

0 258 002 xxx

„LSH“ 0 258 003 xxx Heated sensors (finger type = 1)

0 258 005 xxx

„LSM“ 0 258 104 xxx Heated sensors (finger type > 1)

„LSF“ 0 258 006 xxx Heated sensors (planar type = 1)

„LSU“ 0 258 007 xxx Heated sensors (universal planar type, variable )

Gasoline direct injection Motronic MED 7

Air-mass meter with air temperature sensor

Electroniccontrol unit In-tank module

including thefuel-supply pump

Exhaust-gas recirculation valve

Electronic throttle controlETC

MAP sensor

High-pressure pump

Pressure control valve

Injectors Pressure sensor

Ignition coil

Fuel rail

Lambda-sensor (LSU)

NOx-catalyticconverter

Lambdasensor (LSF)

Gasoline Direct Injection Stratified charge Homogeneous charge

Th

rott

le p

late

pos

itio

n

WOT

Lam

bda

rati

oE

ngi

ne t

orqu

e = 1

0Accelerator pedal position

Compression ratio up to approx. = 17 possible

Partial load with wide open throttle plate (stratified charge)

Engine idle with wide open throttle plate and low rpm

Up to 20% reduced fuel consumptioncompared with manifold injection

Stratified charge makes lean fuel-airmixture up to approx. = 8 possible

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