Emission inspection 2002 A4 B6 1.8T

Larhal · Jan 15, 2025

will do as soon as possible.

Larhal · Jan 16, 2025

Will do so this weekend.

Larhal · Jan 19, 2025

OK

Sorry 2500 rpm vrs 2000

Here is the Data:

Code:


Sunday 19 January 2025 14:13:46:49418-VCID:3A2DCF2C6043897A51F-5160 VCDS Version: Release 24.7.1 (x64) Data version: 20240919 DS356.3 
8E0 909 518 M ADVMB 1.8L R4/5VT 01 0001 
G002 F0 G031 F0 G031 F1 G000 F0 G000
Marker TIME Group 2 - Field 0 TIME Group 31 - Field 0 TIME Group 31 - Field 1 
STAMP Engine Speed - (G28) STAMP Lambda Control - Bank 1 (actual) STAMP Lambda Control - Bank 1 (specified) 
/min 
0.2 760 0.48 0.992 0.48 1 
0.75 760 1.02 0.992 1.02 1 
1.29 760 1.57 0.992 1.57 1 
1.85 760 2.12 1 2.12 1 
2.41 760 2.68 0.992 2.68 1 
2.97 760 3.24 1 3.24 1 
3.53 840 3.8 1.008 3.8 1 
4.07 1400 4.34 0.984 4.34 1 
4.61 1640 4.88 1.008 4.88 1 
5.16 1760 5.44 1 5.44 1 
5.72 1880 5.98 1.008 5.98 1 
6.25 2000 6.52 1.016 6.52 1 
6.8 2040 7.08 1.031 7.08 1 
7.35 2120 7.62 0.992 7.62 1 
7.89 2200 8.16 0.961 8.16 1 
8.42 2280 8.69 0.992 8.69 1 
8.96 2320 9.24 0.984 9.24 1 
9.51 2360 9.79 0.984 9.79 1 
10.06 2360 10.32 0.992 10.32 1 
10.61 2400 10.89 1 10.89 1 
11.17 2400 11.45 1 11.45 1 
11.73 2440 12 1.008 12 1 
12.27 2440 12.56 1.008 12.56 1 
12.83 2480 13.1 1.008 13.1 1 
13.36 2480 13.62 1.008 13.62 1 
13.89 2480 14.17 1 14.17 1 
14.45 2480 14.74 0.977 14.74 1 
15.01 2520 15.29 0.953 15.29 1 
15.56 2520 15.84 0.984 15.84 1 
16.1 2520 16.36 0.984 16.36 1 
16.62 2520 16.9 1 16.9 1 
17.18 2520 17.47 1 17.47 1 
17.75 2520 18.03 1 18.03 1 
18.3 2560 18.57 1.016 18.57 1 
18.84 2560 19.11 1.008 19.11 1 
19.38 2560 19.66 1.008 19.66 1 
19.93 2560 20.2 0.992 20.2 1 
20.49 2560 20.75 0.992 20.75 1 
21.03 2560 21.3 0.984 21.3 1 
21.57 2560 21.85 0.961 21.85 1 
22.11 2560 22.37 0.984 22.37 1 
22.64 2560 22.92 1.008 22.92 1 
23.2 2560 23.48 1.008 23.48 1 
23.76 2560 24.04 1.016 24.04 1 
24.32 2560 24.59 1.008 24.59 1 
24.86 2560 25.14 1.008 25.14 1 
25.42 2560 25.69 1.008 25.69 1 
25.97 2560 26.25 0.977 26.25 1 
26.52 2600 26.78 0.961 26.78 1 
27.05 2600 27.32 0.984 27.32 1 
27.6 2600 27.88 0.984 27.88 1 
28.17 2560 28.44 0.984 28.44 1 
28.72 2560 28.99 0.992 28.99 1 
29.25 2560 29.51 1.008 29.51 1 
29.8 2560 30.08 1.016 30.08 1 
30.36 2560 30.63 1.008 30.63 1 
30.9 2600 31.17 0.977 31.17 1 
31.45 2600 31.73 1 31.73 1 
32 2240 32.28 0.977 32.28 1 
32.56 1880 32.84 0.977 32.84 1 
33.12 1560 33.39 0.977 33.39 1 
33.66 1280 33.93 0.977 33.93 1 
34.19 1080 34.46 0.984 34.46 1 
34.74 920 35.02 0.984 35.02 1 
35.28 800 35.55 0.977 35.55 1 
35.83 760 36.1 0.969 36.1 1 
36.38 760 36.66 0.984 36.66 1 
36.95 760 37.23 1.008 37.23 1 
37.5 760 37.78 1.016 37.78 1 
38.06 760 38.34 1.008 38.34 1 
38.62 760 38.9 1.008 38.9 1 
39.18 760 39.46 1.008 39.46 1 
39.73 760 39.99 1.008 39.99 1 
40.26 760 40.53 1.008 40.53 1 
40.81 760 41.09 1.008 41.09 1 
41.37 760 41.64 1.016 41.64 1 
41.9 760 42.18 1.008 42.18 1 
42.45 760 42.73 1.008 42.73 1 
43.01 760 43.29 1.008 43.29 1 
43.58 760 43.85 1.008 43.85 1 
44.11 760 44.39 1.008 44.39 1 
44.67 760 44.94 1.016 44.94 1 
45.2 760 45.48 1.023 45.48 1 
45.74 760 46.01 1.031 46.01 1 
46.29 760 46.57 1.055 46.57 1 
46.84 760 47.12 1.062 47.12 1 
47.38 800 47.64 1.062 47.64 1 
47.92 760 48.2 1.016 48.2 1 
48.48 760 48.74 1 48.74 1 
49.02 760 49.29 0.984 49.29 1 
49.55 760 49.82 0.961 49.82 1 
50.1 760 50.38 0.961 50.38 1 
50.67 760 50.94 0.969 50.94 1 
51.21 760 51.47 0.984 51.47 1 
51.75 760 52.02 1 52.02 1 
52.3 760 52.58 1 52.58 1 
52.85 760 53.12 1 53.12 1 
53.4 760 53.68 1 53.68 1 
53.96 760 54.25 1 54.25 1 
54.53 760 54.8 1 54.8 1 
55.06 760 55.33 1 55.33 1 
55.6 760 55.89 1 55.89 1 
56.17 760 56.44 1 56.44 1 
56.71 760 57 1 57 1 
57.27 760 57.55 1 57.55 1 
57.84 760 58.12 1.008 58.12 1 
58.4 760 58.67 1 58.67 1 
58.93 760 59.21 1.008 59.21 1 
59.48 760 59.75 1 59.75 1 
60.03 760 60.3 1 60.3 1 
60.57 760 60.85 1 60.85 1 
61.13 760 61.41 1 61.41 1 
61.69 760 61.96 1 61.96 1 
62.24 760 62.52 1.008 62.52 1 
62.81 760 63.09 1.008 63.09 1

Dr Sheldon · Jan 19, 2025

Dr Sheldon said:
Engine Warm - Fan kicked in and out - MVB for Upstream o2 voltage at Idle and 2000rpm.

Graph those and post here please.

That is what I want to see - NOT Lambda

Larhal · Jan 19, 2025

Which one is the upstream O2 Voltage?

Larhal · Jan 19, 2025

I hope this ia what you wanted,

Code:


Sunday 19 January 2025 15:04:25:49418-VCID:3A2DCF2C6043897A51F-5160
8E0 909 518 M ADVMB 1.8L R4/5VT 01 0001 
G005 F0 G033
Marker TIME Group 5 - Field 0 TIME Group 33 - Field 1
STAMP Engine Speed - (G28) STAMP Sensor Voltage - Bank 1 Sensor 1
/min V
0.47 760 0.19 1.54
1.03 760 0.76 1.54
1.57 760 1.3 1.54
2.13 760 1.85 1.52
7.12 760 6.83 1.54
7.68 760 7.39 1.54
8.21 760 7.95 1.52
8.76 760 8.47 1.48
9.32 760 9.03 1.48
9.86 760 9.59 1.48
10.41 1040 10.14 1.48
10.98 920 10.69 1.64
11.53 760 11.25 1.54
12.06 760 11.79 1.62
12.61 760 12.34 1.54
13.17 760 12.9 1.46
13.72 760 13.44 1.46
14.26 760 13.99 1.46
14.79 760 14.53 1.46
15.35 760 15.08 1.44
15.91 760 15.63 1.44
16.46 760 16.19 1.54
17 760 16.73 1.52
17.55 760 17.28 1.52
18.12 760 17.83 1.5
18.65 760 18.39 1.52
19.19 760 18.92 1.52
19.74 1200 19.46 1.5
20.31 1760 20.02 1.66
20.86 2000 20.58 1.58
21.41 2120 21.13 1.62
21.95 2200 21.69 1.58
22.49 2200 22.21 1.56
23.05 2160 22.77 1.5
23.58 2080 23.31 1.48
24.13 2040 23.86 1.42
24.69 2000 24.41 1.4
25.22 1960 24.95 1.44
25.76 1960 25.49 1.5
26.32 1960 26.04 1.5
26.87 1960 26.59 1.58
27.4 1920 27.14 1.6
27.93 1920 27.66 1.62
28.49 1920 28.21 1.56
29.05 1920 28.77 1.56
29.6 1960 29.33 1.52
30.17 2000 29.89 1.5
30.72 2000 30.44 1.48
31.28 2040 31 1.5
31.84 2040 31.57 1.52
32.4 2040 32.11 1.56
32.95 2040 32.67 1.56
33.49 2080 33.22 1.62
34.04 2080 33.77 1.6
34.6 2080 34.32 1.6
35.15 2080 34.88 1.6
35.68 2080 35.42 1.56
36.24 2040 35.96 1.56
36.8 2040 36.52 1.56
37.37 2040 37.09 1.54
37.92 2000 37.64 1.52
38.49 2000 38.2 1.58
39.04 2000 38.76 1.58
39.6 2000 39.32 1.58
40.15 2000 39.88 1.58
40.69 2040 40.41 1.6
41.21 2000 40.95 1.6
41.77 2000 41.49 1.6
42.34 2000 42.05 1.6
42.87 2000 42.61 1.54
43.42 2000 43.15 1.56
43.97 2000 43.7 1.5
44.54 2000 44.26 1.5
45.08 1680 44.82 1.56
45.64 1320 45.36 1.42
46.18 1120 45.9 1.48
46.74 960 46.46 1.48
47.27 840 47.01 1.52
47.82 760 47.54 1.5
48.38 760 48.1 1.5
48.93 760 48.66 1.56

Ziddywerks · Jan 19, 2025

All of that looks good to me.

Dr Sheldon · Jan 19, 2025

EuroX said:
All of that looks good to me.

Here is a link to the MOT Testers Manual

MOT inspection manual: cars and passenger vehicles - 8. Nuisance - Guidance - GOV.UK

Noise, exhaust emissions, engine malfunction indicator lamp (MIL) (sometimes called an engine management light or 'EML'), and fluid leak rules and inspection for car and passenger vehicle MOT tests.

www.gov.uk

Larhal · Jan 20, 2025

So what is needed here???

Larhal · Jan 23, 2025

Dr Sheldon, do you have any further comments as what the cause may be?

Larhal · Jan 31, 2025

Bump???

Dr Sheldon · Feb 1, 2025

Larhal said:
Dr Sheldon, do you have any further comments as what the cause may be?

You are not comparing Apples with Apple here !!

I would use a 4 Gas Analyser to diagnose and repair that because that is what the MOT Station is using !!

VCDS is showing the car as an Emissions pass !!

I wonder how it would fair in another MOT Station - Different Gas Analyser.

Graphing o2S1 and o2S2 would paint a picture

Two weeks ago I (Jan 14) I asked

Dr Sheldon said:
Engine Warm - Fan kicked in and out - MVB for Upstream o2 voltage at Idle and 2000rpm.

Graph those and post here please.

I see no graph !! Hence you see no reply from me.

A data log is not a Graph - I hate Data Logs - They display as shit - I have never created a data Log - I never will - I hate them.

They hurt my head !!

Emission inspection 2002 A4 B6 1.8T

Larhal

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Larhal

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Larhal

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Dr Sheldon

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Larhal

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Larhal

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Ziddywerks

Professional User

Dr Sheldon

Verified VCDS User

MOT inspection manual: cars and passenger vehicles - 8. Nuisance - Guidance - GOV.UK

Larhal

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Larhal

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Larhal

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Dr Sheldon

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Sunday	19	January	2025	14:13:46:49418-VCID:3A2DCF2C6043897A51F-5160	VCDS Version: Release 24.7.1 (x64)	Data version: 20240919 DS356.3
8E0 909 518 M	ADVMB	1.8L R4/5VT 01 0001
		G002	F0	G031	F0	G031	F1	G000	F0	G000

Marker	TIME	Group 2 - Field 0	TIME	Group 31 - Field 0	TIME	Group 31 - Field 1
	STAMP	Engine Speed - (G28)	STAMP	Lambda Control - Bank 1 (actual)	STAMP	Lambda Control - Bank 1 (specified)
		/min
	0.2	760	0.48	0.992	0.48	1
	0.75	760	1.02	0.992	1.02	1
	1.29	760	1.57	0.992	1.57	1
	1.85	760	2.12	1	2.12	1
	2.41	760	2.68	0.992	2.68	1
	2.97	760	3.24	1	3.24	1
	3.53	840	3.8	1.008	3.8	1
	4.07	1400	4.34	0.984	4.34	1
	4.61	1640	4.88	1.008	4.88	1
	5.16	1760	5.44	1	5.44	1
	5.72	1880	5.98	1.008	5.98	1
	6.25	2000	6.52	1.016	6.52	1
	6.8	2040	7.08	1.031	7.08	1
	7.35	2120	7.62	0.992	7.62	1
	7.89	2200	8.16	0.961	8.16	1
	8.42	2280	8.69	0.992	8.69	1
	8.96	2320	9.24	0.984	9.24	1
	9.51	2360	9.79	0.984	9.79	1
	10.06	2360	10.32	0.992	10.32	1
	10.61	2400	10.89	1	10.89	1
	11.17	2400	11.45	1	11.45	1
	11.73	2440	12	1.008	12	1
	12.27	2440	12.56	1.008	12.56	1
	12.83	2480	13.1	1.008	13.1	1
	13.36	2480	13.62	1.008	13.62	1
	13.89	2480	14.17	1	14.17	1
	14.45	2480	14.74	0.977	14.74	1
	15.01	2520	15.29	0.953	15.29	1
	15.56	2520	15.84	0.984	15.84	1
	16.1	2520	16.36	0.984	16.36	1
	16.62	2520	16.9	1	16.9	1
	17.18	2520	17.47	1	17.47	1
	17.75	2520	18.03	1	18.03	1
	18.3	2560	18.57	1.016	18.57	1
	18.84	2560	19.11	1.008	19.11	1
	19.38	2560	19.66	1.008	19.66	1
	19.93	2560	20.2	0.992	20.2	1
	20.49	2560	20.75	0.992	20.75	1
	21.03	2560	21.3	0.984	21.3	1
	21.57	2560	21.85	0.961	21.85	1
	22.11	2560	22.37	0.984	22.37	1
	22.64	2560	22.92	1.008	22.92	1
	23.2	2560	23.48	1.008	23.48	1
	23.76	2560	24.04	1.016	24.04	1
	24.32	2560	24.59	1.008	24.59	1
	24.86	2560	25.14	1.008	25.14	1
	25.42	2560	25.69	1.008	25.69	1
	25.97	2560	26.25	0.977	26.25	1
	26.52	2600	26.78	0.961	26.78	1
	27.05	2600	27.32	0.984	27.32	1
	27.6	2600	27.88	0.984	27.88	1
	28.17	2560	28.44	0.984	28.44	1
	28.72	2560	28.99	0.992	28.99	1
	29.25	2560	29.51	1.008	29.51	1
	29.8	2560	30.08	1.016	30.08	1
	30.36	2560	30.63	1.008	30.63	1
	30.9	2600	31.17	0.977	31.17	1
	31.45	2600	31.73	1	31.73	1
	32	2240	32.28	0.977	32.28	1
	32.56	1880	32.84	0.977	32.84	1
	33.12	1560	33.39	0.977	33.39	1
	33.66	1280	33.93	0.977	33.93	1
	34.19	1080	34.46	0.984	34.46	1
	34.74	920	35.02	0.984	35.02	1
	35.28	800	35.55	0.977	35.55	1
	35.83	760	36.1	0.969	36.1	1
	36.38	760	36.66	0.984	36.66	1
	36.95	760	37.23	1.008	37.23	1
	37.5	760	37.78	1.016	37.78	1
	38.06	760	38.34	1.008	38.34	1
	38.62	760	38.9	1.008	38.9	1
	39.18	760	39.46	1.008	39.46	1
	39.73	760	39.99	1.008	39.99	1
	40.26	760	40.53	1.008	40.53	1
	40.81	760	41.09	1.008	41.09	1
	41.37	760	41.64	1.016	41.64	1
	41.9	760	42.18	1.008	42.18	1
	42.45	760	42.73	1.008	42.73	1
	43.01	760	43.29	1.008	43.29	1
	43.58	760	43.85	1.008	43.85	1
	44.11	760	44.39	1.008	44.39	1
	44.67	760	44.94	1.016	44.94	1
	45.2	760	45.48	1.023	45.48	1
	45.74	760	46.01	1.031	46.01	1
	46.29	760	46.57	1.055	46.57	1
	46.84	760	47.12	1.062	47.12	1
	47.38	800	47.64	1.062	47.64	1
	47.92	760	48.2	1.016	48.2	1
	48.48	760	48.74	1	48.74	1
	49.02	760	49.29	0.984	49.29	1
	49.55	760	49.82	0.961	49.82	1
	50.1	760	50.38	0.961	50.38	1
	50.67	760	50.94	0.969	50.94	1
	51.21	760	51.47	0.984	51.47	1
	51.75	760	52.02	1	52.02	1
	52.3	760	52.58	1	52.58	1
	52.85	760	53.12	1	53.12	1
	53.4	760	53.68	1	53.68	1
	53.96	760	54.25	1	54.25	1
	54.53	760	54.8	1	54.8	1
	55.06	760	55.33	1	55.33	1
	55.6	760	55.89	1	55.89	1
	56.17	760	56.44	1	56.44	1
	56.71	760	57	1	57	1
	57.27	760	57.55	1	57.55	1
	57.84	760	58.12	1.008	58.12	1
	58.4	760	58.67	1	58.67	1
	58.93	760	59.21	1.008	59.21	1
	59.48	760	59.75	1	59.75	1
	60.03	760	60.3	1	60.3	1
	60.57	760	60.85	1	60.85	1
	61.13	760	61.41	1	61.41	1
	61.69	760	61.96	1	61.96	1
	62.24	760	62.52	1.008	62.52	1
	62.81	760	63.09	1.008	63.09	1