-
Guest, 🚨New Stock alert: Premium CUPRA valve caps now available in the store 👉 Order now from the merchandise store
N75 valve & boost probs
- Thread starter cupra-c_ya
- Start date
where is the N249 pabs?
im going to change my spring in my dv tomorrow, if no luck then just try the std bosch valve.
put old N75 back on, if just the old N75 valve makes it better but not cured like before I will send my new one back, scratch my head, have a think and then scratch my head again, bloody cars hey!
im going to change my spring in my dv tomorrow, if no luck then just try the std bosch valve.
put old N75 back on, if just the old N75 valve makes it better but not cured like before I will send my new one back, scratch my head, have a think and then scratch my head again, bloody cars hey!
Russellg911
Guest
Pabs: my car has been vag-com'd twice.
1st time was about a 15 min drive - car was fine that day and nothing odd found.
2nd time was about an hours drive - again, car was ok that day and no codes. Both times MAF gave good readings circa 190g/s - 196g/s.
1st time was about a 15 min drive - car was fine that day and nothing odd found.
2nd time was about an hours drive - again, car was ok that day and no codes. Both times MAF gave good readings circa 190g/s - 196g/s.
Russellg911
Guest
russ is your car revo'd or std?
If I cant sort out my probs thru elimination then im gonna ask revo for a reflash of recent code as cant rule this out.
If I cant sort out my probs thru elimination then im gonna ask revo for a reflash of recent code as cant rule this out.
Russellg911
Guest
you tried this different N75 valve yet?
std dump valve as well?
* im sure you said on a different thread you have had your dv checked by someone, have you leak tested it yourself? if std bosch it could split and leak
std dump valve as well?
* im sure you said on a different thread you have had your dv checked by someone, have you leak tested it yourself? if std bosch it could split and leak
Last edited:
N75 J works for me, I've only been out accelerated on the motorway in the last 6 months by a Bentley Continential GT.
Russellg911
Guest
Std DV...
Gonna try and borrow CupraSteves N75 and see what happens.
I then plan to:
Change the coolant temp sensor for the green one.
Change the std DV to a 007
And if all that does nothing, I'm going to try and get booked in at JBS or something.
Gonna try and borrow CupraSteves N75 and see what happens.
I then plan to:
Change the coolant temp sensor for the green one.
Change the std DV to a 007
And if all that does nothing, I'm going to try and get booked in at JBS or something.
well russell, i've not heard or seen this problem on a standard car before, so perhaps if you get an answer it might be worth me looking into it too....
N249 is another dv control valve thingy - do a search on here for it and lots will be revealed - theres about a 20page thread on it regarding how to bypass it......
Good luck
N249 is another dv control valve thingy - do a search on here for it and lots will be revealed - theres about a 20page thread on it regarding how to bypass it......
Good luck
cupra-c ya - i'd get your ECU number (should only need the first 3 digits i think) and ask Revo by email/phone if there have been any updates for their code.
To be honest, I asked ref my stage 2 map, and there was 1 update last august i think (i got it installed in may last year) but the updates only fix switching/uploading issues and not performance.
To be honest, I asked ref my stage 2 map, and there was 1 update last august i think (i got it installed in may last year) but the updates only fix switching/uploading issues and not performance.
Russellg911
Guest
cupra-c_ya said:
Well, a guy tested my DV using some kind of trigger operated pump device? He said that it was ok....but I assume by that he meant there were no leaks? Surely that test wouldn't tell if the DV was prone to sticking??
I would test it yourself, easy to do by using a pen to push the piston up, put your finger on the nipple on the top, if the piston slides down then it is leaking.
also check that when you take your finger off the top it slides down nice, it might stick when coming down.
I have changed my dv back to my std bosch and it seems to drive better, checked my forge dv and it is not leaking i think but when I put my finger on the top nipple and let go of the piston it does drop abit initially??
also check that when you take your finger off the top it slides down nice, it might stick when coming down.
I have changed my dv back to my std bosch and it seems to drive better, checked my forge dv and it is not leaking i think but when I put my finger on the top nipple and let go of the piston it does drop abit initially??
thats normal mate - unless you have the ability to create a vacuum before you put ur thumb on it
why would my std bosch be smoother then the forge tho, not as lumpy as what I have been getting? 
piston vs diaphragm can be part of the issue......
Trust me mate, i've been asking myself the same questions for ages. Never have figured out what the problem is, it just seemed to get better with a new N75.... at the moment i'm a little worried with the running of my car again - DEFINATELY need a tb alignment as the pedal seems to be all over the place - might be due to the fact the battery was disconnected recently and i don't think one was done afterwards.
Trust me mate, i've been asking myself the same questions for ages. Never have figured out what the problem is, it just seemed to get better with a new N75.... at the moment i'm a little worried with the running of my car again - DEFINATELY need a tb alignment as the pedal seems to be all over the place - might be due to the fact the battery was disconnected recently and i don't think one was done afterwards.
Hi martyn, when you have got chance if you could look at these logs for 002,003, 020 & 115.
I have changed the spring in the forge dv to yellow, did notice that it was a lot smoother then the green and did not fluctuate so much, all look o.k? n75 valve look to be o.k?
I have changed the spring in the forge dv to yellow, did notice that it was a lot smoother then the green and did not fluctuate so much, all look o.k? n75 valve look to be o.k?
Code:
Group A: '003 Group B:
Idle speed Air mass in Throt Angle Ignit Angle
TIME 700-820 rpm 2.0-4.5 g/s 0.2-4.0% 0-12 BTDC TIME
Marker STAMP /min g/s % °BTDC STAMP
0.01 2480 58.22 99.2 3
0.42 2560 0 12.9 6.8
0.82 2560 17.25 11.8 26.3
1.22 2640 49.17 73.3 24
1.62 2720 66.03 100 18
2.11 2920 95.72 100 6
2.53 3120 116.06 100 1.5
3.02 3360 122.67 100 2.3
3.42 3520 128.86 100 1.5
3.94 3760 135.75 100 0.8
4.34 3920 139.17 100 0
4.74 4080 149.5 100 0.8
5.14 4280 153.03 100 0.8
5.54 4440 160.83 100 0.8
5.94 4640 167.56 100 1.5
6.34 4800 168.44 100 1.5
6.75 4920 172.5 100 1.5
7.15 5080 175.92 100 2.3
7.55 5200 176.22 100 3
7.97 5320 174.75 100 3.8
8.37 5480 176.81 100 4.5
8.86 5640 177.53 100 5.3
9.26 5760 177.89 100 7.5
9.68 5840 179.03 100 8.3
10.17 5960 180.97 99.2 7.5
10.57 5960 25.22 4.3 12.8
10.97 4600 67.58 37.3 29.3
11.47 4680 163.42 98.4 5.3
11.87 4760 168.44 100 0
12.27 4840 168.5 99.6 0
12.69 4880 169.56 100 0.8
13.18 4960 167.11 100 1.5
13.58 5040 164.92 100 2.3
13.98 5120 167.56 100 3.8
14.5 5200 169.14 99.6 3.8
Code:
Monday 27 March 2006 20:03:32
06A 906 032 DE 1.8L R4/5VT 0001
Group A: '002 Group B:
Idle speed Engine load Inj. period Air mass in
TIME 700-820 rpm 15-25% 2.0 - 4.0 ms 2.0-4.5 g/s TIME
Marker STAMP /min % ms g/s STAMP
0.61 2800 181.2 17 95.94
1.1 2920 181.2 17.68 97.08
1.5 3000 182.7 18.36 107.25
1.9 3120 182.7 18.02 111.28
2.32 3200 184.2 18.36 112.31
2.81 3320 185.7 18.36 115.56
3.21 3400 186.5 18.36 125.78
3.73 3560 185.7 18.02 123.89
4.13 3640 182.7 17.68 128.11
4.53 3720 185.7 18.02 133.86
4.93 3800 183.5 18.02 133.28
5.33 3880 183.5 18.02 137.33
5.73 3960 185 18.36 140.61
6.13 4040 182.7 18.02 141
6.54 4120 184.2 18.36 146.06
6.94 4200 182.7 18.36 145.36
7.34 4280 182.7 18.36 148.83
7.84 4400 182 18.36 151.14
8.24 4440 179.7 18.02 153.94
8.65 4520 181.2 18.02 155.92
9.15 4640 180.5 18.02 159.69
9.55 4680 180.5 18.02 161.19
10.06 4800 178.2 18.02 165.14
10.46 4840 178.2 18.02 165.67
10.86 4920 177.4 18.02 164.69
11.36 5000 178.2 18.36 168.44
11.77 5040 175.9 18.36 168.61
12.27 5120 173.7 17.68 169.56
12.67 5200 172.9 18.02 169.33
13.08 5240 172.9 17.68 172.5
13.58 5320 170.7 17.68 171.86
13.98 5400 168.4 19.04 172.67
14.4 5440 166.2 18.7 171.03
14.8 5520 165.4 18.7 176.5
15.2 5560 163.2 18.7 174.03
15.6 5600 163.9 18.7 175.92
16 5680 163.2 18.7 176.36
16.4 5720 162.4 18.7 177.61
16.8 5760 163.2 18.7 178.44
17.21 5800 160.9 18.7 175.69
17.61 5880 160.9 18.7 179.03
18.01 5880 160.2 18.36 179.03
18.41 5920 159.4 18.02 179.03
18.81 5960 159.4 18.02 182.08
19.21 6000 160.2 18.02 182.39
19.61 5440 9.8 1.36 22.97
20.11 4840 129.3 15.64 146.06
Code:
Monday 27 March 2006 20:15:27
06A 906 032 DE 1.8L R4/5VT 0001
Group A: '020 Group B:
Idle Stabilization Idle Stabilization Idle Stabilization Idle Stabilization
TIME TIME
Marker STAMP CF CF CF CF STAMP
0.01 0 0 0 0
0.4 0 0 0 0
0.81 1.5 2.3 1.5 1.5
1.31 0.8 1.5 0.8 1.5
1.71 0.8 1.5 0 0.8
2.11 0 0.8 0 0.8
2.51 0 0.8 0 0
Code:
Monday 27 March 2006 20:17:15
06A 906 032 DE 1.8L R4/5VT 0001
Group A: '115 Group B:
Engine Speed Engine Load Spec. Boost Actual Boost
TIME 700-6800 RPM 15-150% 990-1800 mbar <=1800 mbar TIME
Marker STAMP /min % mbar mbar STAMP
0.53 2040 52.6 980 1070
0.94 2080 53.4 1160 1090
1.44 2240 97.7 2080 1280
1.84 2440 116.5 2150 1530
2.35 2680 141.4 2220 1850
2.75 2880 168.4 2230 2130
3.15 3120 189.5 2240 2350
3.64 3360 189.5 2240 2280
4.04 3560 189.5 2260 2250
4.46 3800 189.5 2260 2270
4.86 4000 187.2 2270 2270
5.26 4240 186.5 2250 2270
5.76 4480 186.5 2230 2230
6.16 4680 185 2200 2170
6.57 4880 180.5 2170 2150
7.08 5120 178.2 2110 2100
7.58 5360 172.9 2030 2030
8.09 5560 166.2 1970 1960
8.57 5760 160.9 1930 1910
8.99 5960 160.2 1910 1890
9.5 6120 157.1 1880 1860
9.9 6200 109.8 980 1740IMO, Do NOT bother with a DV relocation kit - waste of money and actually gave me problems, rather than solve them.
It just takes the feed for the DV from the intercooler hose, rather than by the turbo - gives you cooler/colder air to use hence make the DV more reliable (not really an issue with a forge 007P) and supposedly a better response. Some people have said good things, lots of others have said bad. I'm with the bad on this one - caused me more problems than I originally had, so sold it on to someone who might benefit from it instead.
It just takes the feed for the DV from the intercooler hose, rather than by the turbo - gives you cooler/colder air to use hence make the DV more reliable (not really an issue with a forge 007P) and supposedly a better response. Some people have said good things, lots of others have said bad. I'm with the bad on this one - caused me more problems than I originally had, so sold it on to someone who might benefit from it instead.
Similar threads
