ad0752s600013a

PEC fuel injection and ignition system test of electrical system idle speed self-adaptation

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-6000-13A

PEC fuel injection and ignition system test of electrical system idle speed self-adaptation

Scope of test

Measuring instrument/
Test connection

Operation/Requirement

Specified value

Possible cause/Remedy

1.0

Closed throttle position self-adaptation

too rich

too lean

Signal

Engine: Idling

Actual value 08

Closed throttle position

Closed throttle position

0 0.2 ms

(Closed throttle position basic position,

0.0 ms)

< 0.0 ms (neg. value)

> 0.0 ms (pos. value)

Exhaust system leaking in front of three-way catalytic converter.

Fuel injection valves

Diaphragm pressure regulator

Defective purging

Oxygen sensor

Fuel mixture has a tendency towards "rich"

Fuel mixture has a tendency towards "lean"