engine AUDI A4 1999 B5 / 1.G APB Engine Motronic Multiport Fuel Injection System Servising User Guide
[x] Cancel search | Manufacturer: AUDI, Model Year: 1999, Model line: A4, Model: AUDI A4 1999 B5 / 1.GPages: 90, PDF Size: 0.84 MB
Page 26 of 90

24-23
      
Procedure after interrupting voltage 
supply
 
     
Note:  
     At the first learning (adaptation) phase during the 
"Engine-Basic Setting" the engine might run a 
little rough at idle and bucks/jerks a little while 
driving. 
     
Required special tools and test equipment  
    
Work procedure  
Carry out the following work after the voltage was interrupted:  
VAS 5051 with VAS 5051/1
   orVAG1551 with VAG1551/3B
-  Check DTC memory and erase if necessary   Page 01
-15
 .
-  Generate new readiness code   Page 01
-105
 .
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Page 27 of 90

24-24
      
Motronic Engine Control Module (ECM) -
J220, replacing
 
     
Note:  
     When the engine control module is disconnected 
the learned values are erased but the contents of 
the DTC memory remain intact. 
     
Required special tools and test equipment  
    
Removing  
VAS 5051 with VAS 5051/1
   orVAG1551 with VAG1551/3B
-  Connect vehicle Diagnostic, Test and Information System VAS5051 or 
VAG1551 scan tool to vehicle and select control module for engine 
elcectronics "Adress word" 01   Page 01
-9 . The ignition must be 
switched on. 
8D0907551.. 2.7L V6/5VT 
G 0002
Codin
g 06711 
WSC 06388
    
Indicated on display: e.g. ECM identification on VAG1551  
-  Always display control module identification and print out   Page 01
-
13
 . 
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Page 28 of 90

24-25
      
-  Compare coding with coding variation table   
Page 01
-93
 . 
     
-  Switch ignition off.
     
-  Pull rubber gasket forward.
     
-  Remove plenum cover forward.
     
-  Remove cover for E-box (in plenum chamber).
    
Installing  
Installation is performed in the reverse sequence. However note the 
following:  
Note:  
At the first learning (adaptation) phase during the "Engine-Basic Setting" 
the engine might run a little rough at idle and bucks/jerks a little while 
driving.  -  Carefully lever off the retainer bar with a screwdriver -arrow-.
-  Release connectors on engine control module and disconnect 
connectors. 
-  Remove engine control module.
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Page 29 of 90

24-26
      
Important Note:  
     After installing new engine control module, carry 
out the following operations: 
     - Check DTC memory and erase if necessary   
Page 01
-15
 . 
     - Perform adaptation of Throttle Valve Control 
Module -J338   Page 24
-146
 . 
     - Observe notes for coding new engine control 
module  Page 01
-93
 . 
     - On vehicles with cruise control (recognizable at 
steering column switch), activate cruise control 
function in the engine control module. 
     
       Repair Manual, Electrical Equipment, Repair 
Group 01
   
     - On vehicles with automatic transmission carry 
out adaptation for Kick-Down switch   Page 24
-
166
 . 
     - Generate readiness code   Page 01
-105
 . 
     - Perform adaptation of immobilizer to engine 
control module 
     
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Page 30 of 90

       Repair Manual, Electrical Equipment, Repair 
Group 01, On Board Diagnostic of Immobilizer, Adaptation after replacing engine control module
 
  
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Page 31 of 90

24-27
      
Idle speed, checking
 
     
Test conditions  
     
No leaks in exhaust system 
     Coolant temperature at least 80 C 
     
Electrical consumers switched off (radiator 
fan must not run during the check) 
     A/C switched off 
     Pressure gauge not connected 
     Selector lever in position P or N (vehicles 
with automatic transmission) 
     
Checking idle speed  
     
Notes:  
     The idle speed cannot be adjusted.
     The idle speed is tested during the basic setting 
of the engine. 
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Page 32 of 90

     
During the basic setting of the engine the A/C 
compressor is automatically switched off and 
the EVAP canister purge regulator valve is 
closed. 
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Page 33 of 90

24-28
      
-  Check DTC memory   Page 01
-15
 . The DTC 
memory must be clear. If necessary, repair any 
malfunctions and erase the DTC memory. 
Switch off the engine, then start up again. Take 
vehicle for a test drive and check DTC memory 
again to make sure it is clear. 
     
-  Run engine at idle speed. 
     
CAUTION! 
     
The electric radiator fan should not be 
running. Rapid data transfer 
HELP
Select function XX
    
Indicated on display  
-  Press buttons -0- and -4- to select function "Basic Setting" and confirm 
entry with -Q- button. 
Basic settin
g 
Input displa
y group number XXX
    
Indicated on display  
-  Press buttons -0- -5- and -6- to select "Display group number 056" and 
confirm entry with -Q- button. 
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Page 34 of 90

24-29
 Notes: 
System in Basic Setting 56  
1 
2 
3 
4 
    
Indicated on display: (1 - 4   display zones)  -  Check whether the engine speed shown in display field 1 (actual 
engine speed) is within the specified tolerance range (750 - 850 RPM). 
  
Display fields  
  
1   2   3   4  
Display Group 056: Idle speed stabilization with engine idling at operating temperature  
Display  
xxx RPM  
xxx RPM   x.x %   xxxxxxx  
Indicates  
Engine speed (actual)  
Engine speed 
(specified)  Idling speed control- 
torque change  Operating conditions  
Specified 
value  750 -850 RPM  
800 RPM   x.x %   0 0 0 0 0  
Note  
If readout does not match 
Specified value   Page 24
-31
   
      Relevance of figures   
Page 24
-32
   
 The value shown in display field 1 is the actual engine speed.
 The value shown in display field 2 (specified engine speed) is a theoretical value calculated by the engine control module.
 See note on next page: 
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Page 35 of 90

24-30
      
When the engine is idling the engine control 
module tries constantly to adjust the actual 
engine speed so that it matches the specified 
value. 
     This means that the actual engine speed when 
idling should always be approximately the same 
as the specified engine speed. 
     Display fields 3 and 4 provide additional 
information which is not relevant when checking 
the idle speed. 
     
- 
Press button. 
     
-  Press buttons -0- and -6- to select function "End 
Output" and confirm entry with -Q- button. 
     
-  If readout does not match Specified value, check 
DTC memory again. 
     
-  If DTC memory was erased, generate readiness 
code  Page 01
-105
 . 
Pa
ge 35 of 90 Motronic Multi
port Fuel In
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(MFI
) system, servicin
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11/22/2002 htt
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yp
e=re
pair&id=AUDI.B5.FU04.24.1