Flashyg

Posted in 2.7t b5 engine discussion forum.


13.28 84 -28.1 -35.2 -36.7
13.59 84 -28.1 -35.2 -36.7
13.89 84 -28.1 -35.2 -36.7
14.19 84 -28.1 -35.2 -36.7
14.48 84 -28.1 -35.2 -36.7
14.79 84 -28.1 -35.2 -36.7
15.08 84 -28.1 -35.2 -36.7
15.4 84 -28.1 -35.2 -36.7
15.7 84 -28.1 -35.2 -36.7
15.99 84 -28.1 -35.2 -36.7



This is the fault I have been getting for 1.5 years now and cannot figure.
It is driving me crazy and towards getting rid. So sad I know.
Just today after no issue since the morning of my visit to see Mrc, back it came with avengeance.

Fist issue is really really lumpy idle you can hear the surges of the engine 200 rpm to 800 and back, throbbing.
You look at lambdas they are -25 then up then down the engine responds in almost cutting out.

No fault code though!

I have tried to capture this with some of the logs, some of the logs are jut short blips of throttle when the engine is OK ish to show reading variations.

2nd issue the positive deviation only comes after this idling situation, when the car is then driven under gentle conditions immediately after the erratic running.

3rd The car then throws a code, Positive deviation. All is fine in safe mode boost limited to 5 psi, until you clear the error code then the issue comes back,

Please Please can anyone help or share knowledge of this blatant issue, my car is of no value to me whilst broken and can only be getting worse.

No boost leaks I promise. but both lambdas start to show trimming above the norm, then they get higher and off it goes into free fall.

Fitted new fuel pump, regulator, injectors, dv,s, n75 , n249, non return valves off n80, non return valve up to breather spider, Maf, cam belt.




1 Fault Found:
17965 - Charge Pressure Control: Positive Deviation
P1557 - 35-00 - -

Regards,










Block 99

16.29 84 -28.1 -35.2 -36.7
16.6 84 -28.1 -35.2 -36.7
16.9 84 -28.1 -35.2 -36.7
17.21 84 -28.1 -35.2 -36.7
17.5 84 -28.1 -35.2 -36.7
17.81 84 -28.1 -35.2 -36.7
18.11 84 -28.1 -35.2 -36.7
18.4 84 -28.1 -35.2 -36.7
18.71 84 -28.1 -35.2 -36.7
19.02 84 -28.1 -35.2 -36.7
19.32 84 -28.1 -35.2 -36.7
19.62 84 -28.1 -35.2 -36.7
19.92 84 -28.1 -35.2 -36.7
20.22 84 -28.1 -35.2 -36.7


Block 107
56.22 760 -8.6 -7.8 Test OFF
56.52 760 -8.6 -7.8 Test OFF
56.82 760 -9.4 -8.6 Test OFF
57.12 760 -10.2 -9.4 Test OFF
57.43 760 -10.9 -10.2 Test OFF
57.73 760 -11.7 -10.9 Test OFF
58.03 760 -12.5 -11.7 Test OFF
58.34 760 -13.3 -11.7 Test OFF
58.64 760 -13.3 -12.5 Test OFF
58.94 760 -13.3 -12.5 Test OFF
59.24 760 -13.3 -12.5 Test OFF
59.54 760 -13.3 -12.5 Test OFF
59.84 760 -12.5 -12.5 Test OFF
60.14 760 -11.7 -11.7 Test OFF
60.44 760 -10.9 -10.9 Test OFF
60.74 800 -7.8 -8.6 Test OFF
61.05 960 0 0 Test OFF
61.36 960 0 0 Test OFF
61.65 840 0 0 Test OFF
61.95 800 0 0 Test OFF
62.26 800 0.8 0.8 Test OFF
62.56 800 1.6 1.6 Test OFF
62.86 800 1.6 1.6 Test OFF
63.16 760 2.3 2.3 Test OFF
63.46 760 3.1 3.1 Test OFF
63.76 760 3.9 3.9 Test OFF
64.06 760 4.7 4.7 Test OFF
64.36 800 5.5 5.5 Test OFF
64.67 760 6.3 5.5 Test OFF

Block 111
0.29 0 0 0 -1.3
0.59 0 0 0 -1.3
0.89 0 0 0 -1.3
1.19 0 0 0 -1.3
1.49 0 0 0 -1.3
1.79 0 0 0 -1.3
2.09 0 0 0 -1.3
2.41 0 0 0 -1.3
2.71 0 0 0 -1.3
3.01 0 0 0 -1.3
3.31 0 0 0 -1.3

Block 116 Air correction factors
0.3 800 0 0 0
0.6 1560 0 0 -4.7
0.9 1640 0 0 -6.3
1.21 1320 0 0 -3.9
1.51 1080 0 0 -0.8
1.8 960 0 0 0
2.11 880 0 0 0
2.4 840 0 0 0
2.72 800 0 0 0
3.01 840 0 0 0
3.32 1640 0 0 -4.7
3.62 2600 0 0 -9.4
3.92 2560 0 0 -9.4
4.22 2880 0 0 -8.6
4.52 2800 0 0 -8.6
4.83 3000 0 0 -8.6
5.13 2800 0 0 -8.6
5.43 3000 0 0 -8.6
This one is called crazy lambda Block 001
60.14 800 96 0 0
60.45 760 96 0 0
60.75 760 96 0 0
61.05 760 96 0 0
61.36 800 96 0 0
61.66 760 96 0 0
61.96 760 96 0 0
62.25 760 96 -0.8 -0.8
62.55 760 96 -1.6 -1.6
62.85 760 96 -2.3 -2.3
63.16 760 96 -3.1 -2.3
63.46 760 96 -3.9 -3.1
63.76 760 96 -3.9 -3.9
64.06 760 96 -4.7 -3.9
64.36 760 96 -5.5 -4.7
64.66 760 96 -6.3 -5.5
64.97 760 96 -7 -5.5
65.28 760 96 -7.8 -6.3
65.58 760 96 -8.6 -7
65.88 760 96 -8.6 -7.8
66.18 760 96 -9.4 -8.6
66.48 760 96 -10.2 -9.4
66.79 760 96 -10.9 -9.4
67.09 760 96 -11.7 -10.2
67.39 760 96 -9.4 -10.9
67.69 760 96 -8.6 -11.7
67.99 800 96 -7.8 -9.4
68.28 800 96 -9.4 -8.6
68.59 760 96 -10.2 -7.8
68.89 760 96 -8.6 -7
69.19 760 96 -7.8 -6.3
69.49 800 96 -7 -8.6
69.79 760 96 -6.3 -7
70.1 800 96 -5.5 -6.3
70.4 800 96 -8.6 -5.5
70.7 760 96 -7 -4.7
71.01 760 96 -6.3 -7
71.31 760 96 -5.5 -7
71.6 760 96 -4.7 -5.5
71.92 800 96 -3.9 -4.7
72.22 760 96 -6.3 -3.9
72.52 760 96 -7 -6.3
72.82 760 96 -4.7 -7
73.12 760 96 -3.9 -4.7
73.42 800 96 -3.1 -3.9
73.73 800 96 -4.7 -3.1
74.03 760 96 -5.5 -5.5

here is another look at the idle?!
2.47 1800 94 0 0
2.77 1440 94 0 0
3.07 1080 94 0 0
3.38 800 94 1.6 1.6
3.68 680 94 2.3 2.3
3.97 480 94 1.6 3.1
4.27 520 94 0 0.8
4.58 520 94 -1.6 -0.8
4.88 400 94 0 0
5.18 520 94 -0.8 -0.8
5.48 560 94 -2.3 -2.3
5.79 520 94 -3.9 -3.9
6.09 480 94 -5.5 -4.7
6.39 440 94 -7 -6.3
6.69 480 94 -8.6 -7.8
6.99 560 94 -10.2 -8.6
7.29 520 94 -10.9 -10.2
7.59 520 93 -12.5 -11.7
7.89 480 93 -14.1 -12.5
8.19 520 94 -15.6 -14.1
8.5 560 93 -17.2 -14.8
8.8 520 94 -18 -16.4
9.1 520 94 -19.5 -17.2
9.4 520 94 -21.1 -18.8
9.7 560 94 -21.9 -20.3
10.01 600 94 -23.4 -21.1
10.32 600 94 -24.2 -22.7
10.61 600 94 -25 -23.4
10.91 600 94 -25 -24.2
11.22 640 94 -25 -25
11.51 640 94 -25 -25
11.81 640 93 -25 -25
12.12 680 94 -25 -25
12.43 680 94 -25 -25
12.73 640 94 -25 -25
13.02 640 94 -25 -25
13.33 1280 94 -0.8 -0.8
13.63 1480 94 0 0
13.94 1120 94 0 0
14.24 880 94 -0.8 -0.8
14.53 680 94 -1.6 -1.6
14.84 440 94 0 0
15.13 560 94 -0.8 -0.8
15.43 520 94 -2.3 -2.3
15.74 400 94 0 0
16.04 480 94 -1.6 -1.6
16.34 600 94 -1.6 -1.6
16.64 480 93 -3.1 -3.1
16.94 520 94 -4.7 -3.9
17.24 520 94 -6.3 -5.5
17.55 440 94 -7 -7
17.86 480 94 -8.6 -7.8
18.15 520 94 -10.2 -9.4
18.46 560 94 -11.7 -10.9
18.75 520 94 -13.3 -11.7
19.05 480 94 -14.1 -13.3
19.36 480 94 -15.6 -14.1
19.66 520 94 -17.2 -15.6
19.96 560 93 -18.8 -17.2
20.27 520 94 -19.5 -18
20.56 520 94 -21.1 -19.5
20.87 560 94 -21.9 -20.3
21.17 560 94 -23.4 -21.9
21.47 600 94 -25 -22.7
21.88 600 94 -25 -24.2
22.17 640 94 -25 -25
22.47 560 94 -25 -25
22.79 640 94 -25 -25
23.08 600 94 -25 -25
23.38 640 94 -25 -25
23.68 640 94 -25 -25
23.98 600 94 -25 -25
24.28 640 94 -25 -25
24.59 560 94 -25 -25
24.89 600 94 -25 -25

the error code positive deviation then arrives but only when car id driven gently or boasted or blasted but must be driven.
Then safe mode cones and all is OK, But then if you clear the code issues return.

Please help. Cant .......

nyet

bad O2 for idle/lambda problems. postive deviation might be bad BPVs

Flashyg

I understand what you are saying.
O2s are new and both behaving identically so its is not lightly to be there IMHO.

Dv's yes but i have replaced them and on idle the car is sucking so not lightly to be restricting the flow whether open or closed.

Really Need to figure this out.
Everything is relatively new but the issue keeps on appearing?

nyet

damn strange. how about thermostat, maf?

Flashyg

OK changed maf, ecu and throttle body re set no difference also fuel p reg and plugs, dvs, no boost leaks I promise.

Thought long and hard.

Cant be diverters as they are wide open at idle.

To cut a long story short here is exactly what is happening....Yes this is it...

Block 32 vag
driving along on throttle normal 30-40mph
time idleT partT idle T part T
11.26 -0.2 -7 0 -7.8
11.57 -0.2 -7 0 -7.8
11.87 -0.2 -7 0 -7.8
12.17 -0.2 -7 0 -7.8
12.47 -0.2 -7 0 -7.8
Then Boot it Watch how learn values immediately go normal??Crazy... Why ???
12.78 -0.2 -0.8 0 -0.8
13.09 -0.2 -0.8 0 -0.8
13.41 -0.2 -0.8 0 -0.8
ease off and
13.77 -0.2 -7 0 -7.8
14.11 -0.2 -7 0 -7.8
14.42 -0.2 -7 0 -7.8
14.74 -0.2 -7 0 -7.8
Then Boot it again
15.13 -0.2 -3.9 0 -4.7
15.44 -0.2 -0.8 0 -0.8
15.73 -0.2 -0.8 0 -0.8
16.04 -0.2 -0.8 0 -0.8
16.35 -0.2 -0.8 0 -0.8
16.65 -0.2 -0.8 0 -0.8
16.97 -0.2 -0.8 0 -0.8
17.29 -0.2 -0.8 0 -0.8
17.63 -0.2 -0.8 0 -0.8
17.99 -0.2 -0.8 0 -0.8
18.36 -0.2 -0.8 0 -0.8
This is the issue in a nut shell.
Crazy rich fueling on gentle touch of throttle but OK wide open.
Have changed injectors ,maf, dvs, fuel pressure reg. reset ecu, t body, plugs. both lambdas copy to a fine=ate level of accuracy so cant be them.

What it is HELP.

Thanks.
G

Flashyg

Please Help.
Not coping well.
Need serious suggestions as to why car is over fueling on mild and idle throttle.

nyet

maybe bad plug, coil pack, thermostat

Flashyg

No misfire but have some data


Some normal drinving and what looks to be normal behaviour.Or is this normal???
Block 1, 2 , 32


Group A: '001 Group B: '002 Group C: '032
Engine speed Coolant Temp O2 Sens Bank1 O2 Sens Bank2 Engine speed Engine load Injection time Mass air flow @idle B1S1 @part B1S1 @idle B2S1 @part B2S1
TIME 80-105C +/-10%(>2% flct) +/-10%(>2% flct) TIME 2-5/1.6-5ms 2.8-5.6/10-15g/s TIME +/-10% +/-10% +/-10% +/-10%
Marker STAMP /min °C % % STAMP /min % ms g/s STAMP % % % %



92 -7.8 -5.5 1349.2 4160 115 8.5 141.58 1349.51 -2.1 -0.8 -0.8 -0.8
92 -1.6 -3.1 1350.13 4400 84.2 6.12 105.11 1350.45 -2.1 -0.8 -0.8 -0.8
92 -7 -6.3 1351.09 4600 75.2 5.44 101.61 1351.41 -2.1 -0.8 -0.8 -0.8
92 -5.5 -3.9 1352.06 4760 72.2 5.44 99.14 1352.39 -2.1 -0.8 -0.8 -0.8
92 -6.3 0 1353.05 4920 72.2 5.44 102.14 1353.37 -2.1 -0.8 -0.8 -0.8
92 0 0 1354.05 5360 177.4 12.92 284.97 1354.4 -2.1 -0.8 -0.8 -0.8
92 0 0 1355.12 6000 190.2 17.68 331.58 1355.49 -2.1 -0.8 -0.8 -0.8
92 0 0 1356.2 5280 12 1.36 15.36 1356.53 -2.1 -3.1 -0.8 -3.9
92 0 0 1357.17 4280 12.8 0 16.33 1357.46 -2.1 -3.1 -0.8 -3.9
92 0 0 1358.07 3600 13.5 0 14.22 1358.37 -2.1 -3.1 -0.8 -3.9
92 0 0 1358.97 3200 12.8 0 12.78 1359.27 -2.1 -3.1 -0.8 -3.9
92 0 0 1359.88 3120 13.5 0 12.25 1360.18 -2.1 -3.1 -0.8 -3.9
92 0 0 1360.78 3040 12.8 0 11.94 1361.09 -2.1 -3.1 -0.8 -3.9
92 1.6 2.3 1361.69 3200 74.4 5.78 76.97 1362 -2.1 -3.1 -0.8 -3.9
92 0 2.3 1362.6 3720 12.8 1.36 13.97 1362.9 -2.1 -3.1 -0.8 -3.9
92 -4.7 -0.8 1363.51 3680 20.3 1.7 21.56 1363.81 -2.1 -3.1 -0.8 -3.9
92 -3.9 5.5 1364.4 3640 30.8 2.72 34.08 1364.72 -2.1 -3.1 -0.8 -3.9
92 1.6 2.3 1365.32 3680 30.1 2.38 32.53 1365.62 -2.1 -3.1 -0.8 -3.9
92 -4.7 -0.8 1366.22 3680 30.1 2.38 32.36 1366.53 -2.1 -3.1 -0.8 -3.9






Group A: '001 Group B: '003 Group C: '032
Engine speed Coolant Temp O2 Sens Bank1 O2 Sens Bank2 Engine speed Mass air flow Throttle angle Ign timing @idle B1S1 @part B1S1 @idle B2S1 @part B2S1
TIME 80-105C +/-10%(>2% flct) +/-10%(>2% flct) TIME g/s 0-5deg=closed deg TIME +/-10% +/-10% +/-10% +/-10%
Marker STAMP /min °C % % STAMP /min g/s % °BTDC STAMP % % % %

4.78 800 94 -25 -25 5.08 800 7.28 1.6 3.8 5.39 0 0 0 0
5.7 800 94 -25 -25 6 800 7.06 1.6 9 6.3 0 0 0 0
6.6 800 94 -25 -25 6.9 760 7.14 1.6 9.8 7.21 0 0 0 0
7.51 760 94 -25 -25 7.8 760 7.19 1.6 9 8.11 0 0 0 0
8.41 1360 94 0 0 8.71 1200 6.53 1.2 0.8 9.01 0 0 0 0
9.31 680 94 -0.8 -0.8 9.62 800 5.81 1.2 7.5 9.91 0 0 0 0
10.21 760 94 -3.1 -2.3 10.52 760 8.5 2.4 3 10.83 0 0 0 0
11.13 800 94 -5.5 -4.7 11.43 800 8.44 2 2.3 11.72 0 0 0 0
12.02 800 94 -8.6 -7 12.33 760 8.19 2 6 12.64 0 0 0 0
12.94 760 94 -10.9 -9.4 13.23 800 7.75 2 8.3 13.54 0 0 0 0
13.84 800 94 -13.3 -10.9 14.13 800 7.56 1.6 3 14.45 0 0 0 0
14.75 800 94 -15.6 -13.3 15.05 800 7.44 1.6 8.3 15.34 0 0 0 0
15.64 760 94 -18 -14.8 15.95 800 7.78 1.6 6 16.26 0 0 0 0
16.56 760 94 -20.3 -17.2 16.85 760 8.06 2 5.3 17.15 0 0 0 0
17.46 800 94 -23.4 -19.5 17.77 800 8.39 2 1.5 18.07 0 0 0 0
18.36 760 94 -25 -21.1 18.67 760 8.56 1.6 9.8 18.96 0 0 0 0
19.27 720 94 -25 -23.4 19.58 600 11.89 2.4 12 19.88 0 0 0 0
20.18 400 94 0 0 20.47 600 12.39 7.8 23.3 20.78 0 0 0 0
21.08 1000 94 0 0 21.39 920 9.42 2.4 2.3 21.69 0 0 0 0
21.98 800 94 -1.6 -1.6 22.28 800 8.19 2 8.3 22.58 0 0 0 0
22.98 760 94 -3.9 -3.9 23.29 760 8.19 2 8.3 23.6 0 0 0 0
23.89 800 94 -7 -6.3 24.2 800 7.89 2 3.8 24.5 0 0 0 0
24.8 800 94 -9.4 -7.8 25.1 800 7.67 2 6 25.41 0 0 0 0
25.71 800 94 -11.7 -10.2 26 800 7.39 2 9 26.3 0 0 0 0
26.61 800 94 -14.1 -11.7 26.92 760 7.17 1.6 8.3 27.22 0 0 0 0
27.51 760 94 -16.4 -14.1 27.82 720 8.78 2 9.8 28.12 0 0 0 0
28.42 760 94 -19.5 -16.4 28.72 800 8.22 2 5.3 29.03 0 0 0 0


Please help G