Need help interpreting log data
06-24-2008, 12:51 PM
#1
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Need help interpreting log data
Error code thrown is
17536 - Fuel Trim Bank 1 (Mult) System too lean
P1128-35-10 - Intermittent
2001 A4 1.8TQMS Revo Chipped
Ran a log on group 002, went to redline in second gear. Assuming a proper functioning MAF, I should see peak airflow at 80% of horsepower. Stock is 170hp (so should see value of @136)
I am chipped so @200 should see a value of @160.
Logged data at redline shows max airmass of @124.
Am I to assume a bad MAF...something else? where to look next?
Group 032 shows the following at idle:
"at idle additive" = -1.1
"P throttle Mult." = 23.4
Group 002 log to follow
Idlespeed|Engineload|Injectavetime|Airmassdrawnin
800 15.8 2.38 2.5
800 15.8 2.38 2.53
800 15.8 2.38 2.53
800 15.8 2.38 2.56
800 15.8 2.38 2.53
800 15.8 2.38 2.56
800 15.8 2.38 2.5
800 15.8 2.38 2.56
800 15.8 2.38 2.56
840 21.8 3.74 7.47
1520 48.1 6.12 10.97
1920 44.4 5.44 17.58
1800 50.4 6.8 19.14
1600 55.6 7.48 18.94
1520 56.4 7.48 18.14
1480 61.7 8.84 17.92
1480 63.2 8.5 18
1760 62.4 8.16 21.39
2080 65.4 8.5 28.17
2360 67.7 9.52 31.81
2720 74.4 10.2 41.86
3120 81.2 10.54 51.03
3560 83.5 11.22 57.19
4000 80.5 10.54 61.69
4400 82 10.88 68.14
4800 81.2 10.88 74.17
5120 61.7 6.8 48.72
4800 12 2.04 9.72
4560 14.3 2.38 11.89
4320 14.3 2.04 12
3440 66.2 9.18 47.36
3120 73.7 9.18 51.31
3240 89.5 12.24 62.25
3360 106 14.62 76.25
3600 115.8 17 83.69
3840 109.8 15.98 77.36
4040 107.5 15.3 85.06
4240 108.3 15.64 88.94
4440 124.1 18.02 87.25
4600 117.3 15.3 79.64
4720 101.5 12.58 74.67
4840 84.2 10.88 77.14
5000 83.5 11.9 79.28
5080 82.7 11.56 81.31
5200 81.2 11.9 80.39
5320 79.7 11.56 80.67
5440 79.7 11.56 83.39
5560 79.7 11.56 85.14
5680 79.7 11.56 87.19
5760 79.7 11.9 87.83
5880 83.5 12.58 98.42
6000 93.2 14.28 112.22
6120 101.5 14.96 122.39
6280 102.3 15.64 122.81
6440 100.8 14.96 123.42
6560 97.7 14.62 122.08
6680 96.2 14.28 124.17
6680 15.8 2.38 8.64
6440 15 2.04 16.5
6200 15.8 2.38 18
5720 15.8 2.38 18.14
4320 55.6 7.48 51.53
4360 58.6 8.16 50.5
4360 37.6 5.1 27.81
4360 24.8 3.06 17.97
4320 15.8 2.38 11.86
4280 15 2.38 12.53
4240 15 2.38 12.11
4240 14.3 2.38 12.03
4160 14.3 2.04 11.64
4160 14.3 2.04 11.36
4160 14.3 2.04 11.36
4080 14.3 0 11.08
4040 14.3 0 11.19
4000 13.5 0 10.94
3960 13.5 0 10.64
3920 13.5 0 10.53
3880 14.3 0 10.56
3840 14.3 0 10.58
3800 13.5 0 10.39
3760 13.5 0 10.33
3720 13.5 0 10.11
3680 13.5 0 9.97
3640 13.5 0 9.92
3600 13.5 0 9.92
3560 14.3 0 9.72
3480 14.3 0 9.75
3400 14.3 0 9.53
3320 14.3 0 9.19
3200 14.3 0 8.81
3120 14.3 0 8.53
2960 13.5 0 7.89
2800 13.5 0 7.83
2640 13.5 0 7.19
2520 13.5 0 6.69
2360 14.3 0 6.47
2160 14.3 0 5.83
1840 14.3 0 5.22
1560 13.5 0 4.11
1280 13.5 0 3.39
1200 18.8 2.72 3.94
1120 13.5 2.04 2.89
1040 14.3 2.04 2.97
960 14.3 2.04 2.64
880 13.5 2.04 2.44
800 14.3 2.04 2.44
800 15 2.04 2.5
800 15.8 2.04 2.5
800 15.8 2.38 2.5
800 15.8 2.38 2.5
17536 - Fuel Trim Bank 1 (Mult) System too lean
P1128-35-10 - Intermittent
2001 A4 1.8TQMS Revo Chipped
Ran a log on group 002, went to redline in second gear. Assuming a proper functioning MAF, I should see peak airflow at 80% of horsepower. Stock is 170hp (so should see value of @136)
I am chipped so @200 should see a value of @160.
Logged data at redline shows max airmass of @124.
Am I to assume a bad MAF...something else? where to look next?
Group 032 shows the following at idle:
"at idle additive" = -1.1
"P throttle Mult." = 23.4
Group 002 log to follow
Idlespeed|Engineload|Injectavetime|Airmassdrawnin
800 15.8 2.38 2.5
800 15.8 2.38 2.53
800 15.8 2.38 2.53
800 15.8 2.38 2.56
800 15.8 2.38 2.53
800 15.8 2.38 2.56
800 15.8 2.38 2.5
800 15.8 2.38 2.56
800 15.8 2.38 2.56
840 21.8 3.74 7.47
1520 48.1 6.12 10.97
1920 44.4 5.44 17.58
1800 50.4 6.8 19.14
1600 55.6 7.48 18.94
1520 56.4 7.48 18.14
1480 61.7 8.84 17.92
1480 63.2 8.5 18
1760 62.4 8.16 21.39
2080 65.4 8.5 28.17
2360 67.7 9.52 31.81
2720 74.4 10.2 41.86
3120 81.2 10.54 51.03
3560 83.5 11.22 57.19
4000 80.5 10.54 61.69
4400 82 10.88 68.14
4800 81.2 10.88 74.17
5120 61.7 6.8 48.72
4800 12 2.04 9.72
4560 14.3 2.38 11.89
4320 14.3 2.04 12
3440 66.2 9.18 47.36
3120 73.7 9.18 51.31
3240 89.5 12.24 62.25
3360 106 14.62 76.25
3600 115.8 17 83.69
3840 109.8 15.98 77.36
4040 107.5 15.3 85.06
4240 108.3 15.64 88.94
4440 124.1 18.02 87.25
4600 117.3 15.3 79.64
4720 101.5 12.58 74.67
4840 84.2 10.88 77.14
5000 83.5 11.9 79.28
5080 82.7 11.56 81.31
5200 81.2 11.9 80.39
5320 79.7 11.56 80.67
5440 79.7 11.56 83.39
5560 79.7 11.56 85.14
5680 79.7 11.56 87.19
5760 79.7 11.9 87.83
5880 83.5 12.58 98.42
6000 93.2 14.28 112.22
6120 101.5 14.96 122.39
6280 102.3 15.64 122.81
6440 100.8 14.96 123.42
6560 97.7 14.62 122.08
6680 96.2 14.28 124.17
6680 15.8 2.38 8.64
6440 15 2.04 16.5
6200 15.8 2.38 18
5720 15.8 2.38 18.14
4320 55.6 7.48 51.53
4360 58.6 8.16 50.5
4360 37.6 5.1 27.81
4360 24.8 3.06 17.97
4320 15.8 2.38 11.86
4280 15 2.38 12.53
4240 15 2.38 12.11
4240 14.3 2.38 12.03
4160 14.3 2.04 11.64
4160 14.3 2.04 11.36
4160 14.3 2.04 11.36
4080 14.3 0 11.08
4040 14.3 0 11.19
4000 13.5 0 10.94
3960 13.5 0 10.64
3920 13.5 0 10.53
3880 14.3 0 10.56
3840 14.3 0 10.58
3800 13.5 0 10.39
3760 13.5 0 10.33
3720 13.5 0 10.11
3680 13.5 0 9.97
3640 13.5 0 9.92
3600 13.5 0 9.92
3560 14.3 0 9.72
3480 14.3 0 9.75
3400 14.3 0 9.53
3320 14.3 0 9.19
3200 14.3 0 8.81
3120 14.3 0 8.53
2960 13.5 0 7.89
2800 13.5 0 7.83
2640 13.5 0 7.19
2520 13.5 0 6.69
2360 14.3 0 6.47
2160 14.3 0 5.83
1840 14.3 0 5.22
1560 13.5 0 4.11
1280 13.5 0 3.39
1200 18.8 2.72 3.94
1120 13.5 2.04 2.89
1040 14.3 2.04 2.97
960 14.3 2.04 2.64
880 13.5 2.04 2.44
800 14.3 2.04 2.44
800 15 2.04 2.5
800 15.8 2.04 2.5
800 15.8 2.38 2.5
800 15.8 2.38 2.5
06-24-2008, 01:46 PM
#3
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I just cleaned it with MAF cleaner 2 days ago - so unless
someone else chimes in with other data (or if my interpretation is incorrect) - it would appear MAF needs to be replaced
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