1998 A4 Avant 2.8 AHA 5-speed 218,000 mi.
Two weeks ago the car would die (only when hot) when going to an idle. This was infrequent and only would happen once or twice in a day. Seemed just like a typical vacuum leak and I would get a 16839 (P0455 EVAP Gross leak).
Could not find any visible leaks, worked on the gas cap and N80 .... problem went away for a few days but now has come back as either a 16487 MAF too high or too low as shown this attached scan as a 16201 MAF too low. I will clean and if that doesn't work replace the MAF as my next step. But before I do that (now that I have VCDS-Lite working) I want to log the MAF Measuring blocks before I do anything.
So here's my question ..... Just where do I find information on what my MAF readings should be and under what conditions do you do the test?
I see that measuring block 02 shows MAF readings 3.0 at idle, what other blocks should I be looking at?
After clearing codes yesterday I took a 3.5 hour trip over the mountains to Redding and back. The car ran flawlessly on the trip except for when stopped in a construction zone for about 5 min it started to die at an idle, I kept the revs up till we got rolling and drove another another 4-5 hrs with out a problem. Below is the results of my autoscan after that trip.
Thanks in advance for any information
Jim
Two weeks ago the car would die (only when hot) when going to an idle. This was infrequent and only would happen once or twice in a day. Seemed just like a typical vacuum leak and I would get a 16839 (P0455 EVAP Gross leak).
Could not find any visible leaks, worked on the gas cap and N80 .... problem went away for a few days but now has come back as either a 16487 MAF too high or too low as shown this attached scan as a 16201 MAF too low. I will clean and if that doesn't work replace the MAF as my next step. But before I do that (now that I have VCDS-Lite working) I want to log the MAF Measuring blocks before I do anything.
So here's my question ..... Just where do I find information on what my MAF readings should be and under what conditions do you do the test?
I see that measuring block 02 shows MAF readings 3.0 at idle, what other blocks should I be looking at?
After clearing codes yesterday I took a 3.5 hour trip over the mountains to Redding and back. The car ran flawlessly on the trip except for when stopped in a construction zone for about 5 min it started to die at an idle, I kept the revs up till we got rolling and drove another another 4-5 hrs with out a problem. Below is the results of my autoscan after that trip.
Thanks in advance for any information
Jim
Code:
VCDS-Lite Version: Release 1.2
Wednesday, 29 April 2015, 10:50:03:43507
Chassis Type: 8D - Audi A4 B5
Scan: 01,02,03,08,15,16,17,25,35,37,45,55,56,57,67,75,76 ,77
-------------------------------------------------------------------------------
Address 01: Engine Labels: 078-907-551-ACK.LBL
Controller: 4D0 907 551 AH
Component: 2.8L V6/5V MOTR HS D02
Coding: 06201
Shop #: WSC 26118
VCID: 6CABEE400F93
1 Fault Found:
16486 - Mass Air Flow Sensor (G70): Signal too Low
P0102 - 35-10 - - - Intermittent
Readiness: 0000 0000
-------------------------------------------------------------------------------
Address 03: ABS Brakes Labels: 8E0-614-111-ABS.LBL
Controller: 8E0 614 111 M
Component: ABS/EDS 5.3 QUATTRO D41
Coding: 0273004134
Shop #: BB 24302
VCID: 2823D250DBEB
No fault code found.
-------------------------------------------------------------------------------
Address 08: Auto HVAC Labels: 8L0-820-043-2D.LBL
Controller: 8L0 820 043 D
Component: A4 KLIMAVOLLAUTOMAT_D75
Coding: 04162
Shop #: WSC 06325
VCID: 2925D754C0E1
No fault code found.
-------------------------------------------------------------------------------
Address 15: Airbags Labels: 8D0-959-655-AI7.LBL
Controller: 8D0 959 655 M
Component: Airbag 7 Audi 0502
Coding: 00106
Shop #: WSC 06325
VCID: 40F36AF0539B
No fault code found.
-------------------------------------------------------------------------------
Address 17: Instruments Labels: 8D0-919-xxx-17.LBL
Controller: 8D0 919 930 L
Component: B5-KOMBIINSTR. VDO D03
Coding: 06262
Shop #: WSC 00000
VCID: 3701012C0655
No fault code found.
-------------------------------------------------------------------------------
Address 35: Centr. Locks Labels: 8D0-862-257.LBL
Controller: 8L0 862 257 N
Component: CV-Pump D06
Coding: 16140
Shop #: WSC 06325
VCID: 40F36AF0539B
4 Faults Found:
01367 - Central Locking Pump Run Time Exceeded (Likely Leak)
35-00 - -
01371 - Alarm triggered by Door Contact Switch; Driver's Side
35-00 - -
01370 - Alarm triggered by Interior Monitoring
35-00 - -
00957 - Key 3
09-00 - Adaptation Limit Surpassed
-------------------------------------------------------------------------------
Address 45: Inter. Monitor Labels: 4B0-951-173.LBL
Controller: 4B0 951 173
Component: Innenraumueberw. D03
Coding: 00102
Shop #: WSC 06325
VCID: E0B30A70735B
No fault code found.
-------------------------------------------------------------------------------
Address 56: Radio Labels: 8D0-035-1xx-56.LBL
Controller: 4B0 035 186 A
Component: Radio D02
Coding: 00117
Shop #: WSC 06325
VCID: 1E4FF48889AF
No fault code found.
End --------------------------------------------------------------------------------------------------
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