Fuel injection and ignition system (HFM-SFI) diagnosis, advanced information

AD07.51-P-2000A

Fuel injection and ignition system (HFM-SFI) diagnosis, advanced information

19.11.2019

Engine

111

 Danger

Risk of death when working on component parts and systems with U >= 30 V alternating voltage (AC) or U >= 60 V direct voltage (DC)

Do not touch damaged or defective live component parts and lines or non-insulated electrical connections and lines.

AS00.00-Z-0035-01A

Topical note

Notes on avoiding damage to ignition system

AH15.10-P-0002-01D

Connecting and using test equipment

AD00.00-P-1000AZ

Connecting hand-held tester (HHT), reading fault memory

Read out fault memory, clear fault memory as well as reset and reactivate HFM-SFI control unit memory, can only be read out with pulse counter in vehicles up to HHT diagnosis identifier 46. Only possible with HHT in vehicles as of HHT diagnosis identifier 49 (incremental control)!   If HFM-SFI control unit is installed from a different vehicle (only possible for vehicles up to 11/94 without immobilizer stage 2), the HFM-SFI control unit memory must be reset and reactivated (see HHT).

AD00.00-P-2000-03A

Tools for testing electrical system of HFM sequential multiport fuel injection/ignition system

AD07.51-P-2000-02A

Connecting diagram for socket box, testing electrical system (HFM-SFI)

AD07.51-P-2000-03A

Signal traces and locations, fuel injection system (HFM-SFI)

AD07.51-P-2000-04A

Signal traces, ignition system (HFM-SFI)

AD07.51-P-2000-05A

Coupling assignment for engine control module (HFM-SFI)

AD07.51-P-2000-06A

Connecting diagram for pulse counter/Hand-Held Tester (HFM-SFI)

AD07.51-P-2000-07A

Notes on fault memory

AD07.51-P-2000-08A

Correction positions of variable reference resistor (HFM-SFI)

AD07.51-P-2000-09A

Notes on HFM-SFI O2 sensor signal

Engine 111.961/974 as of model year 1994 with code 491 (USA version) with diagnostic module II (OBDII)

AD07.51-P-2000-17A

Tools, fuel pressures, testing hydraulics (HFM-SFI)

AD07.51-P-2001-01A

Test connection for fuel pressures (HFM-SFI)

AD07.51-P-2001-02A

Tools, fuel pumps, testing hydraulics (HFM-SFI)

AD07.51-P-2002-01A

Connecting diagram for socket box, testing fuel pumps (HFM-SFI)

AD07.51-P-2002-02A

Connecting diagram for Multimeter, testing fuel pumps (HFM-SFI)

AD07.51-P-2002-03A

Tools, fuel injection valves, testing hydraulics (HFM-SFI)

AD07.51-P-2003-01A

Connecting diagram for socket box, testing fuel injection valves (HFM-SFI)

AD07.51-P-2003-02A

Spray pattern, testing fuel injection valves (HFM-SFI)

AD07.51-P-2003-03A

Hot film engine management (HFM-SFI) fuel injection and ignition system positionof components

Wiring diagrams
Model 124 group 07

GF07.51-P-0001-02C

Overview of wiring diagrams for mixture formation

Model 163 except code 986 (Identification no. (US VIN))

PE07.00-P-1100E

Model 170

PE07.00-P-1100B

Model 202, 208

PE07.00-P-1100D

Model 210

PE07.00-P-1100A