ad0761p600033d

Tank pressure sensor, ME-SFI fuel injection system electrical testing

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

Applies to: ENGINE 120 in MODEL 129 as of 1.9.97, 140 with CODE (494a) USA version

Where it sits

Function group 1 Engine › 07 Mixture formation › 07.61 ME fuel injection/ ignition system — Series 129 · Series 140

EinPAS 16 Fuel/power supply to engine › 16.10 Fuel supply › 16.10.1 Basic information — Series 129 · Series 140

Also applies to engines/gearboxes: 120 ***

AD07.61-P-6000-33D

Tank pressure sensor, ME-SFI fuel injection system electrical testing

Model 129 as of 9/97 ,
model 140

Test of

Tester/test connection

Operation/

Requirement

Specified value

Possible cause/

Remedy

1.0

Tank pressure sensor (B4/3)

Sensor signal

Model 129 as of 9/97 , model 140

right ME-SFI control module only (N3/12)

Activate shutoff valve for activated charcoal canister (Y58/4)

53

(1.53)

26

(1.26)

N3/12

N3/12

51

(1.51)

34

(1.34)

Remove purge line (A) to activated charcoal canister at right purge control valve (Y58/3) in engine compartment on the left-hand side and connect vacuum tester to purge line, refer to

GF07.61-P-0001-01U

Ignition: ON:

Use vacuum tester to apply approx. 25 mbar of vacuum:

> 3 V

< 2.5 V

1.1

Line

Vacuum line

Activated charcoal canister blocked

B4/3

1.1

Voltage supply

B4/3

53

(1.53)

N3/12

44

(1.44)

Ignition: ON

4.7 - 5.3 V

Right ME-SFI control module (N3/12)

Referenced documents