Right peoples.... still getting the positive deviation code.. so checked the requested vs actual boost(thanks Lee) and got the results below. I assume its nothing wrong with the ECU as overall the actual is less then the requested so its either:
air leak
faulty N75
faulty N249
Air flow meter sensor - No, new one fitted
DV Valve - No, as i tried another stock one.
Apologies its a a long reading:
I had to cut half of the results but it was showing requested was > actual - Should i proceed in changing the valves?
air leak
faulty N75
faulty N249
Air flow meter sensor - No, new one fitted
DV Valve - No, as i tried another stock one.
Apologies its a a long reading:
Code:
Group A: '115
RPM Load Absolute Pres. Absolute Pres.
TIME
STAMP /min % mbar mbar
25.2 1040 72.2 1070 1070
26.19 1560 71.4 1040 1070
26.49 1760 75.2 1050 1090
26.79 1920 73.7 1000 1140
38.09 1680 71.4 1020 1000
38.39 1720 82.7 1270 1050
38.69 1760 86.5 1280 1100
47.48 1400 81.2 1290 1060
47.88 1440 91.7 1360 1100
48.18 1440 90.2 1200 1140
48.88 1520 63.9 1000 1120
49.18 1520 82 1230 1120
49.48 1520 91 1330 1140
49.78 1560 94.7 1260 1170
51.28 1560 80.5 1370 1040
51.58 1560 89.5 1300 1090
51.98 1600 91 1200 1150
52.28 1640 94 1140 1190
52.68 1640 91 1060 1230
60.48 1360 76.7 1070 1020
60.78 1360 80.5 1110 1050
61.08 1400 82.7 1110 1080
61.38 1400 85.7 1100 1110
61.68 1440 87.2 1090 1140
61.98 1480 89.5 1070 1160
62.28 1520 82.7 1010 1180
63.28 1600 85 1560 1120
63.68 1600 101.5 1950 1170
63.97 1640 106 1960 1220
64.27 1680 110.5 1930 1270
64.57 1720 112 1880 1310
64.87 1760 112.8 1730 1310
65.16 1760 113.5 1490 1320
72.97 1680 77.4 1050 1000
82.86 1760 82 1170 1030
83.26 1840 88.7 1000 1120
84.56 1880 49.6 1000 1030
84.86 1920 75.9 1060 1060
85.16 1960 77.4 1050 1120
93.26 2080 75.2 1640 1070
93.56 2080 101.5 1880 1150
93.86 2200 111.3 1940 1260
94.16 2240 120.3 1950 1360
94.46 2280 129.3 1960 1460
94.76 2360 121.8 1890 1430
95.06 2440 123.3 1660 1400
98.16 2400 65.4 1370 980
98.46 2360 94.7 2020 1060
98.86 2440 111.3 2060 1240
99.26 2520 121.1 2060 1360
99.56 2560 122.6 2030 1390
99.86 2640 122.6 2050 1400
100.16 2720 123.3 2040 1400
132.04 1600 72.2 1200 990
132.34 2040 84.2 1330 1030
132.64 2320 95.5 1300 1110
132.94 2480 104.5 1200 1230
133.24 2280 112 1140 1340
133.54 2120 96.2 1030 1370
133.84 1480 78.9 1020 1310
134.44 1960 72.9 1090 1160
138.44 1480 66.2 1000 1040
138.74 1600 76.7 1080 1060
139.04 1640 83.5 1220 1100
139.44 1800 92.5 1300 1160
139.83 1960 98.5 1310 1230
140.13 2080 98.5 1290 1280
140.43 2200 90.2 1200 1310
140.73 2280 82.7 1150 1300
141.03 2440 81.2 1150 1280
141.33 2520 83.5 1410 1280
141.63 2680 116.5 1460 1310
141.93 2800 121.1 1410 1370
142.23 2960 121.1 1370 1370
142.53 3120 103 1350 1370
142.83 3240 113.5 1400 1340
143.13 3360 125.6 1680 1370
143.43 3560 127.1 1920 1390
143.73 3720 126.3 1910 1390
144.13 3920 126.3 1870 1380
144.53 4120 126.3 1830 1370
144.83 4280 126.3 1740 1350
145.13 4440 127.1 1700 1340
147.23 1720 9 990 1030
147.63 1360 10.5 990 1020
147.93 1280 13.5 990 1010
148.23 1960 9 990 1010
148.53 2040 8.3 990 1010
148.83 2040 8.3 990 1010
149.13 2000 9.8 990 1010
149.43 2000 9.8 990 1010
149.73 1960 9.8 990 1010
150.13 1960 9.8 990 1010
150.43 1920 9.8 990 1010
150.73 1920 14.3 990 1010
151.03 1920 44.4 990 1010
151.33 1920 49.6 990 1020
151.63 1920 48.1 990 1030
151.93 1880 21.1 990 1040
152.23 1920 11.3 990 1030
152.53 1880 9 990 1020
152.83 1880 8.3 990 1020
153.13 1840 9 990 1020
153.43 1880 21.8 990 1010
153.73 1840 48.9 990 1010
154.03 1840 58.6 990 1030
154.33 1880 61.7 990 1050
154.63 1880 73.7 990 1080
155.03 1880 35.3 990 1100
155.33 1880 13.5 990 1070
155.63 1880 9.8 990 1040
155.93 1840 7.5 990 1030
156.23 1840 8.3 990 1020
156.53 1840 9 990 1020
156.93 1800 9 990 1020
157.23 1800 9.8 990 1020
157.53 1840 23.3 990 1010
157.83 1800 46.6 990 1010
158.13 1800 79.7 990 1030
158.43 1840 70.7 990 1100
158.73 1800 32.3 990 1090
159.02 1840 12.8 990 1060
159.32 1800 9.8 990 1040
159.72 1760 7.5 990 1030
160.12 1760 8.3 990 1020
160.42 1720 9 990 1020
160.72 1720 9 990 1020
161.12 1720 9 990 1010
161.52 1680 9 990 1010
161.82 1680 42.1 990 1010
162.12 1680 51.9 990 1010
162.42 1680 54.9 990 1030
162.72 1680 51.9 990 1040
163.02 1680 24.8 990 1040
163.32 1720 12.8 990 1030
163.62 1640 9.8 990 1020
163.91 1680 8.3 990 1020
164.22 1640 8.3 990 1010
164.62 1640 9 990 1010
164.92 1680 22.6 990 1010
165.22 1640 41.4 990 1010
165.52 1600 42.1 990 1020
165.82 1560 19.5 990 1020
166.12 1600 12 990 1010
166.42 1560 9 990 1010
166.72 1560 9 990 1010
167.02 1600 14.3 990 1010
167.42 1560 41.4 990 1000
167.72 1560 63.9 990 1010
168.02 1560 71.4 990 1040
168.32 1600 70.7 990 1070
168.62 1600 69.2 990 1090
168.92 1600 46.6 990 1100
169.22 1560 20.3 990 1070
169.62 1600 10.5 990 1040
169.91 1560 8.3 990 1030
170.21 1560 7.5 990 1020
170.52 1560 9 990 1020
170.92 1520 9 990 1010
171.22 1520 18 990 1010
171.52 1520 47.4 990 1000
171.82 1520 51.9 990 1020
172.12 1520 37.6 990 1030
172.42 1560 18 990 1030
172.72 1480 12 990 1020
173.02 1480 8.3 990 1010
173.31 1440 9 990 1010
173.61 1360 9 990 1010
173.92 1320 9 990 1010
174.32 1280 11.3 990 1010
174.62 1280 12.8 990 1010
175.02 1240 12 990 1010
175.42 1240 12.8 990 1000
175.72 1200 12.8 990 1000
176.02 1200 12.8 990 1000
176.32 1200 12.8 990 1000
176.71 1200 11.3 990 1000
177.02 1000 13.5 990 1000
177.32 920 16.5 990 1000
177.61 840 17.3 990 1000
177.9 800 18.8 990 1000
178.2 840 19.5 990 1000
178.5 840 18.8 990 1000
178.81 840 19.5 990 1000
179.11 840 19.5 990 1000
179.41 840 19.5 990 1000
179.71 840 19.5 990 1000
180.11 1160 22.6 990 1000
180.51 1800 19.5 990 1000
180.81 1800 30.8 990 1000
181.11 1840 62.4 990 990
181.41 1880 69.9 990 1040
181.71 1960 67.7 990 1080
182.01 2040 64.7 990 1100
182.31 2080 63.2 990 1110
182.61 1960 18.8 990 1110
182.91 1600 15.8 990 1060
183.21 1320 12 990 1040
183.51 1360 15.8 990 1030
183.81 1320 18 990 1020
184.11 1360 21.1 990 1010
184.51 1360 23.3 990 1010
184.91 1360 24.1 990 1010
185.21 1360 19.5 990 1010
185.51 1320 16.5 990 1010
185.81 1280 15 990 1010
251.78 1240 60.9 1050 1010
252.08 1400 78.2 1050 1030
252.38 1640 78.9 1040 1070
252.68 1840 78.9 1100 1110
252.98 2080 80.5 1090 1150
253.28 2080 33.1 990 1180
253.68 1680 16.5 990 1080
253.96 1400 14.3 990 1050
254.28 1240 29.3 990 1030
497.15 1400 77.4 1090 1040
497.44 1600 76.7 1080 1080
497.75 1760 69.9 990 1130
498.05 1600 24.1 990 1110
498.35 1360 18 990 1060
498.65 1200 15.8 990 1040
498.94 1120 17.3 990 1030
499.25 1040 17.3 990 1020
499.55 960 18.8 990 1010
499.95 1000 18.8 990 1010
500.25 960 21.8 990 1010
500.54 960 36.1 990 1000
500.85 1000 66.2 990 1000
501.24 1080 77.4 1000 1020
501.54 1160 79.7 1060 1040
501.83 1240 81.2 990 1070
502.14 1280 60.2 990 1100
502.44 1320 41.4 990 1070
502.74 1320 39.1 990 1050
503.04 1400 40.6 990 1030
503.34 1360 21.1 990 1030
503.63 1360 15 990 1020
503.94 1320 14.3 990 1010
504.24 1240 14.3 990 1010
504.54 1240 27.1 990 1010
504.84 1240 50.4 990 1000
505.14 1280 72.9 990 1020
505.44 1360 73.7 1050 1040
505.83 1480 72.2 1080 1080
506.14 1560 85.7 1250 1100
506.44 1680 89.5 1130 1140
506.74 1720 74.4 1030 1180
507.04 1800 60.9 990 1130
507.34 1880 61.7 990 1090
507.64 1920 62.4 1000 1080
507.94 2000 68.4 1000 1080
508.24 2080 69.9 1080 1090
508.54 2160 75.2 1070 1100
508.84 2240 73.7 1050 1120
509.14 2240 46.6 990 1180
509.44 1960 18 990 1110
509.74 1600 15.8 990 1060
510.04 1560 30.1 990 1030
510.34 1520 54.1 1060 1020
510.74 1560 82.7 1340 1050
511.14 1600 89.5 1390 1110
511.44 1680 94.7 1390 1160
511.74 1720 97 1370 1200
512.04 1760 94.7 1320 1240
512.34 1800 91 1310 1250
512.64 1840 86.5 1240 1260
512.94 1880 84.2 1000 1250
513.24 1760 26.3 990 1190
Last edited by a moderator:
boost leak by the look of it, but it is all over the place, nobody could tell u anything from that lot.
when u log mate, u really wanna be rolling before u start, in 3rd, click start, floor it till red line and then click stop. 1000rpm-7000rpm that way the log will show nicely as the above is abit of a mess and alot to read. it shouldnt last more than 30seconds really but the above goes on for 2.30mins!
also when u post it if u stick
when u log mate, u really wanna be rolling before u start, in 3rd, click start, floor it till red line and then click stop. 1000rpm-7000rpm that way the log will show nicely as the above is abit of a mess and alot to read. it shouldnt last more than 30seconds really but the above goes on for 2.30mins!
also when u post it if u stick
Code:
tags it'll display easier
Last edited:
the results abit of a mess so my bad there (cheers acid) i had delete some so the revs are going to jump as there are reading in between which i removed. but just wanted to show the key results and to get reassurance that it is a air leak and not the ECU. .....and Lee, following in from acid advice, any chance you can bring your laptop with you on sat night and can do the 3rd gear rolling start method....
cheers people, im still on a learning curve
cheers people, im still on a learning curve
Hi all again...trust me to get cocky to soon - i mentioned in another log that i change a few more hoses a everything was hunky dorey...how wrong. After changing the pipes, i could drive it around and was pushing it abit and no issues. hitting 15-20psi - then a day later was driving along then discovered it only went up to 7psi - limp mode - go the same error code come up(positive deviation) as well as error code about maximum pressure(00544 Maximum Charge Air Pressure Exceeded) - cleared both of them but only the positive deviation comes back - so what know? maf is new, N75 is new, hosing changed,dv is fine - whilst logging, didnt do a full 3rd gear log but on idle, requested v actual was 1010 v 1020 - and at one point was 1010 v 1200 - so get the impression its getting too much boost, so what now? apologies for the long story and Lee, let me know if i missed anything out...
cheers
cheers
u cant measure boost on idle fella, its gotta be under load.
1100mbar measure on vagcom is like 1psi (because you have to deduct 1000 for atmospheric pressure or something?)
its not uncommon for actual to be higher than requested
1100mbar measure on vagcom is like 1psi (because you have to deduct 1000 for atmospheric pressure or something?)
its not uncommon for actual to be higher than requested
was just chucking as much information as possible - soooo any one got any more paths i could follow?
anyone know how much a n112 valve costs? thinking might need to change that? I assume there arnt any special instructions in replacing it, simple remove pipes job
anyone in today who might know another possible path i could follow? apart from bypassing N249 -
thanks
thanks
here are my logs - let me know what you think -
Group C: '118
RPM Temperature Load Absolute Pres.
TIME
STAMP /min °C % mbar
0.53 1720 26 95.3 1260
1.84 2040 24 24.3 1420
3.04 2360 24 29 1480
4.24 2680 24 31 1510
5.44 3000 24 28.2 1490
6.64 3320 25 28.2 1480
7.84 3680 27 28.2 1480
9.04 4000 27 28.2 1460
10.44 4360 29 22 1410
11.64 4640 30 16.9 1380
12.84 4920 31 11.8 1350
14.04 5160 32 10.2 1350
15.23 5360 33 10.2 1350[/quote]
Group C: '118
RPM Temperature Load Absolute Pres.
TIME
STAMP /min °C % mbar
0.53 1720 26 95.3 1260
1.84 2040 24 24.3 1420
3.04 2360 24 29 1480
4.24 2680 24 31 1510
5.44 3000 24 28.2 1490
6.64 3320 25 28.2 1480
7.84 3680 27 28.2 1480
9.04 4000 27 28.2 1460
10.44 4360 29 22 1410
11.64 4640 30 16.9 1380
12.84 4920 31 11.8 1350
14.04 5160 32 10.2 1350
15.23 5360 33 10.2 1350[/quote]
next thing to do -
actuator - apart from counting the threads (which are about 12) - is there any other way i can check/
wastegate - if i take the turbo off, what would i be looking for on the wastegate which would show its buggered...
cheers - forgot to mention, new maf, new n75 and all vac hoses have been changed.
actuator - apart from counting the threads (which are about 12) - is there any other way i can check/
wastegate - if i take the turbo off, what would i be looking for on the wastegate which would show its buggered...
cheers - forgot to mention, new maf, new n75 and all vac hoses have been changed.
that n75 load is still dodgy
the waste gate is basically just an opening which the actuator opens to release exhaust gases, im wondering if your actuator may have gone limp and is just opening too early? some people recently have been saying they can compress the actuator by hand and your not supposed to be able to do that
the waste gate is basically just an opening which the actuator opens to release exhaust gases, im wondering if your actuator may have gone limp and is just opening too early? some people recently have been saying they can compress the actuator by hand and your not supposed to be able to do that
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Yeah, Carl that would make sense. Positive deviation basically means it's outside the set tolerences for achieving more boost than requested.
What N75 are you using? If it is a J try using an F variant. Alot of cars do not get on with the J
What N75 are you using? If it is a J try using an F variant. Alot of cars do not get on with the J
the new one is F - didnt go for the J.
so should i try and move the actuator rod up n down by hand to see if it moves?
thanks guys
so should i try and move the actuator rod up n down by hand to see if it moves?
thanks guys
That's what I was told but I ordered a Forge actuator* and I can pull that open by hand off the car too.
*Mine isn't fitted yet as the Forge actuator rod was too thick. After speaking to Forge they informed me that on some K03 turbos the rod fits but on others the hole is too small. The OE K03 actuator rod on some is 5mm with a hole of 5.3mm on the turbo. The Forge actuator rod is 6mm and so the hole needs to be drilled out to 6.3mm. I told Forge that the garage didn't want to do this initially incase it cracked but they said it was stainless steel and would take the extra 1mm.
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