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PEC fuel injection and ignition system test of electrical system lambda control

Type ad · emne 07.52 · version 0100 · 2003-06-06

Gælder for: ENGINE 111.948 /978 in MODEL 638

Ikke tilgængelig på “da”; vises på Engelsk.

Placering

Funktionsgruppe 1 Motor › 07 Blandingstilberedning › 07.52 Benzinindsprøjtnings- og tændingssystem PMS — Serie 638

EinPAS 15 Motor › 15.45 Motorstyring › 15.45.1 Grundinformation — Serie 638

Gælder også for motorer/gearkasser: 111 948, 111 978

AD07.52-S-6000-10A

PEC fuel injection and ignition system test of electrical system lambda control

Scope of test

Measuring instrument/
Test connection

Operation/Requirement

Specified value

Possible cause/Remedy

1.0

Lambda control

too lean

too rich

Signal

Engine: Idling

Engine coolant temperature > 60°C

Actual value 04

(In the event of a complaint the Lambda control must be measured at idle speed and at 2500 rpm with the purge line (to engine) disconnected and sealed.)

Continually fluctuates between 010 %

Exhaust system leaking in front of three-way catalytic converter

Fuel injection valves

Diaphragm pressure regulator

Purging