ad0761p600004b

Hot-film mass air flow sensor - ME-SFI gasoline injection system - Testing electrical system

Type ad · emne 07.61 · version 0103 · 2003-06-10

Gælder for: ENGINE 113.940 /942 /943 up to 31.5.00, 113.961 ENGINE 113.962 up to 30.11.00 in MODEL 463

Ikke tilgængelig på “da”; vises på Engelsk.

Placering

Funktionsgruppe 1 Motor › 07 Blandingstilberedning › 07.61 Benzinindsprøjtnings- og tændingssystem ME — Serie 463

EinPAS 15 Motor › 15.45 Motorstyring › 15.45.1 Grundinformation — Serie 463

Gælder også for motorer/gearkasser: 113 940, 113 942, 113 943, 113 961, 113 962

AD07.61-P-6000-04B

Hot-film mass air flow sensor - ME-SFI gasoline injection system - Testing electrical system

Scope of test

Tester/test connection

Operation/

Prerequisite:

Specified value

Possible cause/

Remedy

1.0

Hot-film mass air flow sensor (B2/5)

Hot film signal

104

(48E)

N3/10

103

(47E)

Ignition: ON

Engine: idling

Coolant temperature

> 70° C

0.9-1.1 V

1.3-1.7 V

Increasing rotational speed, increasing voltage

1.1

1.2

1.3

Cable

Air leak

B2/5

1.1

Voltage supply

5 V

N3/10

104

(48E)

B2/5

4

Disconnect coupling at hot-film

mass air flow sensor (B2/5)

and check directly at socket 4 (brown/yellow).

Ignition: ON

4.7-5.2 V

Cable

N3/10

1.2

Ground lead for hot-film mass air flow sensor (B2/5)

B2/5

3

N3/10

102

(46E)

Disconnect coupling at hot-film

mass air flow sensor (B2/5)

and check directly at socket 3 (brown).

Ignition: ON

4.7-5.2 V

Cable

1.3

Voltage supply

12 V

N3/10

104

(48E)

B2/5

2

Disconnect coupling at hot-film

mass air flow sensor (B2/5)

and connect positive from voltmeter at socket 2 (red/blue).

Ignition: ON

11-14 V

Cable

Fuse and relay module, basic module

(K40, K40/4, F1f11 or N16/1)