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TTTTweakers Guidev0.6

All the information in this document is provided as is, without warranty of any kind, either expressed or implied, including, without limitation, warranties of merchantability, fitness for a particular purpose and non-infringement. The authors of this document, or the texts within, specifically do not make any warranties or representations as to the accuracy or completeness of any such materials. Under no circumstances shall the authors be liable for any loss, damage, liability or expense incurred or suffered that is claimed to have resulted from the use of this document, including, without limitation, any fault, error, omission, interruption or delay with respect thereto. Under no circumstances, including but not limited to negligence, shall the the authors or their affiliates be liable for any direct, indirect, incidental, special or consequential damages, even if the authors have been advised of the possibility of such damages.

Simply put, the use of the information in this document is at the Users sole risk.

1. 1.1 1.2 2.

INTRODUCTION................................................................................................................................4 ABOUT THE GUIDE ..............................................................................................................................4 ABOUT VAG-COM.............................................................................................................................4 TROUBLESHOOTING ......................................................................................................................5

2.1 DIAGNOSTICS TROUBLE CODES .......................................................................................................5 2.2 CLIMATE CONTROL DIAGNOSIS CODES ..........................................................................................6 2.3 COMMON PROBLEMS .........................................................................................................................7 2.3.1 SYMPTOMS POSSIBLE PROBLEMS .................................................................................................7 2.3.2 TROUBLESHOOTING ..........................................................................................................................7 2.4 LAMBDA ADAPTATION .....................................................................................................................12 2.5 THROTTLE BODY ADAPTATION WITHOUT VAG-COM ..............................................................15 2.6 BASIC VAG-COM LOGGING TESTS ..............................................................................................16 2.6.1 BLOCK 032 FUEL TRIMS .............................................................................................................16 2.6.2 BLOCK 002 MASS AIR FLOW SENSOR / MAF ...........................................................................16 2.6.3 BLOCK 031 LAMBDA (A/F) ........................................................................................................16 2.6.4 BLOCK 004 INTAKE AIR TEMPERATURES..................................................................................17 2.6.5 BLOCK 020 TIMING RETARD ......................................................................................................17 2.6.6 BLOCK 112 EXHAUST GAS TEMPERATURES (EGT) .................................................................19 2.6.7 BLOCK 115 REQUESTED BOOST AND ACTUAL BOOST .............................................................19 2.7 TESTING SENSORS AND SWITCHES .................................................................................................20 2.7.1 ECU BLOCK 062 ACCELERATOR PEDAL ..................................................................................20 2.7.2 ECU BLOCK 066 CLUTCH AND BRAKE PEDAL SWITCHES ......................................................20 2.7.3 ECU BLOCK 056 STEERING PRESSURE SWITCH .......................................................................21 2.7.4 AWD BLOCK 001 BRAKE SWITCHES ........................................................................................21 2.7.5 ABS/ESP BLOCK 003 BRAKE SWITCHES ..................................................................................21 2.7.6 ABS/ESP BLOCK 004 MOVEMENT SENSORS ............................................................................21 2.8 TESTING LAMBDA CONTROL AND CATS ......................................................................................22 2.8.1 BLOCK 060 THROTTLE BODY ADAPTATION .............................................................................22 2.8.2 BLOCK 002 AIR FLOW AND FUEL INJECTION ............................................................................22 2.8.3 BLOCK 030 LAMBDA CONTROL OPERATING STATUS ..............................................................23 2.8.4 BLOCK 034 - AGEING OF PRE-CAT OXYGEN SENSOR .................................................................23 2.8.5 BLOCK 036 - POST-CAT OXYGEN SENSOR DIAGNOSIS ...............................................................23 2.8.6 BLOCK 037 LAMBDA SYSTEM DIAGNOSIS ................................................................................23 2.8.7 BLOCK 043 AGEING OF POST-CAT OXYGEN SENSOR ...............................................................24 2.8.8 BLOCK 046 - CATALYTIC CONVERTER DIAGNOSIS .....................................................................24 2.8.9 BLOCK 070 FUEL TANK BREATHER VALVE DIAGNOSIS ..........................................................24 2.8.10 BLOCK 056 IDLING SPEED DIAGNOSIS ....................................................................................25 2.8.11 READINESS ....................................................................................................................................25 2.9 TESTING THE DASHPOD ...................................................................................................................26 2.9.1 COOLANT TEMP ON THE CC DISPLAY ...........................................................................................26 2.9.2 FUEL LEVEL AND COOLANT TEMP IN VAG-COM .......................................................................27 2.9.3 DASHPOD SELF-DIAGNOSIS ............................................................................................................28 3. 3.1 3.2 3.3 TWEAKING .......................................................................................................................................30 CHANGING TEMPERATURE DISPLAY CELCIUS / FAHRENHEIT ...............................................30 XENON ADJUSTMENT .......................................................................................................................30 DASHPOD ILLUMINATION ................................................................................................................312

3.4 3.5 3.6 3.7 3.7.1 3.7.2 3.7.3 4.

FUEL GAUGE CALIBRATION ............................................................................................................33 KEY FOB RECODING.........................................................................................................................34 CENTRAL LOCKING ..........................................................................................................................35 LEMMIWINKS ....................................................................................................................................37 HOW IT WORKS ................................................................................................................................37 HOW TO USE ....................................................................................................................................39 ECU ADAPTATION CHANNELS ......................................................................................................39

LISTS AND TABLES........................................................................................................................42

4.1 CODES FOR COMMON PARTS ..........................................................................................................42 4.1.1 FLUIDS .............................................................................................................................................42 4.1.2 BODY AND INTERIOR PARTS ...........................................................................................................42 4.1.3 ELECTRICS .......................................................................................................................................42 4.1.4 RUNNING GEAR ...............................................................................................................................42 4.1.5 BAM ENGINE ..................................................................................................................................43 4.2 CLIMATE CONTROL CODES .............................................................................................................44 4.2.1 1C - DIAGNOSTIC TROUBLE CODES ...............................................................................................46 4.3 ENGINE / ECU MEASURING BLOCKS .............................................................................................48 4.3.1 MEASURING BLOCK 000.................................................................................................................48 4.3.2 GENERAL INFORMATION BLOCKS ..................................................................................................49 4.3.3 IGNITION & KNOCK CONTROL BLOCKS ........................................................................................50 4.3.4 MISFIRE RECOGNITION BLOCKS ......................................................