ad0761p600004c

Hot film air mass sensor - check electrics - ME-SFI fuel injection system

Type ad · emne 07.61 · version 0102 · 2003-06-10

Gælder for: ENGINES 104.941 /943 /944 /991 /994 as of 1.8.96 ENGINE 104.995 with CODE (494a) USA version with CODE (807) Model year 1997 with CODE (808) Model year 1998 with CODE (498) as of Model Year 97 Japanese version

Ikke tilgængelig på “da”; vises på Engelsk.

Placering

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

EinPAS 15 Motor › 15.45 Motorstyring › 15.45.1 Grundinformation

Gælder også for motorer/gearkasser: 104 941, 104 943, 104 944, 104 991, 104 994, 104 995

AD07.61-P-6000-04C

Hot film air mass sensor - check electrics - ME-SFI fuel injection 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: At idle speed:

Coolant temperature

> 70 °C

0.9 - 1.1 V

1.3 - 1.7 V

(increasing rpm, increasing voltage)

1.1

1.2

1.3

Line

Unmetered air

B2/5

1.1

Voltage supply
5 V

N3/10

104

(48E)

B2/5

4

Unplug coupling on hot film air mass sensor (B2/5) and check directly at socket 4 brown/yellow (br/ge)

Ignition: ON

4.7 - 5.2 V

Line

N3/10

1.2

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

B2/5

3

N3/10

102

(46E)

Unplug coupling on hot film air mass sensor (B2/5) and check directly at socket 3 brown (br)

Ignition: ON

4.7 - 5.2 V

Line

1.3

Voltage supply
12 V

N3/10

104

(48E)

B2/5

2

(2)

Unplug coupling at hot film air mass sensor (B2/5) and connect positive end of voltmeter to socket 2 red/blue (rt/bl)

Ignition: ON

11 - 14 V

Line

Models 129 and 140

Base module (N16/1) or fuse in base module

Model 202

Fuse and relay module (K40/4)

Model 210

Relay module (K40)