MK5 Golf GTI
All Things Mk5 => Mk5 General Area => Topic started by: heavyd on January 15, 2012, 01:41:55 pm
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Hello folks, I've been having some issues with my car lately, but I thought they were all solved. So I loaded the PDtuning stage 2 map I had onto the car via my shark performance sts device.
Now it had a lot of overboost and fuel cuts. so I compared it to a bunch of logs that I had done with the same map last year, but as you can see below, the way the boost comes in and dies off is totally different to a year ago, also the fuel rail pressure requests a lot more than it did last year aswell, also the engine load is different?
All the datalogging was done on the same stretch of road, and in the same gear.
Now the way the sts device works is you read your map, then send it to shark. They then run it through some master device, and you get a file back that you can use.
Now my question is, how can the requested values of a map be totally different to what I had a year ago??
The maf values I recorded from the stage 2 map showed 265g/s which equates to ~330bhp aswell :surprised:
I then loaded the stock map back onto the car to see if my HPFP was on its way out, and as you can see, it copes fine with the stock map?
Has anyone any ideas as to how the map could have changed so much?
Stage 2 map loaded via sts device
(https://www.mk5golfgti.co.uk/forum/proxy.php?request=http%3A%2F%2Fdaz.co%2Fmedia%2Fb150%2Fheavyd123%2Fnewlog.jpg&hash=1650bf6d09e79a60b762b65039a3ac8809b252ce)
Stage 2 map off a year ago, loaded by PDTuning
(https://www.mk5golfgti.co.uk/forum/proxy.php?request=http%3A%2F%2Fdaz.co%2Fmedia%2Fb150%2Fheavyd123%2Foldlog.jpg&hash=921fb51e63fe0667509e72fe1d4d02a110445ded)
Stock map
(https://www.mk5golfgti.co.uk/forum/proxy.php?request=http%3A%2F%2Fdaz.co%2Fmedia%2Fb150%2Fheavyd123%2Fslocklog.jpg&hash=c09598cb9ff57ee958d91c9603de0be42af3b39e)
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Odd! :confused:
Can we assume that your cam follower and low fuel pressure sensor (on the hpfp) are ok?
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I would reccomend that you let me flash your stage2 map that we made for you rather than trying to use the device to flash it, those logs look nothing like our stg2 requested levels.
Can you log low pressure fuel actual values?
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I logged them in the last log, stock map. They looked ok?
Odd! :confused:
Can we assume that your cam follower and low fuel pressure sensor (on the hpfp) are ok?
The cam follower and the low pressure sensor are new, I also fitted a new in tank fuel pump, fuel filter, and the hpfp has only had about 5months of use from new also.
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I've noticed mine can request different rail pressure in different logging sessions, maybe it requests more pressure when it's running well?
I would say the 2 bar spike is using the a lot of the fuel the pump can supply and it takes a while for the pump pressure to build up again after this. Your car looks to spool up very quick now but sort that spike out :happy2:
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Ive done loads of logs mate. The ones off last year all show the same thing, and this weeks logs are all consistent aswell. I always use the same stretch of road for every log aswell.
I understand the fact that to sort the lambda value out with the extra air, it will just dump loads of fuel in.
Where the boost spike is, the wastegate duty cycle changes sharply, so culd be the cause of the spike
(https://www.mk5golfgti.co.uk/forum/proxy.php?request=http%3A%2F%2Fdaz.co%2Fmedia%2Fb150%2Fheavyd123%2Funtitled-1.jpg&hash=cb95d7c47ec40b7958180fc6fa4291827e4e83c9)
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Looks like a fault with the map, rather then being anything Mechanical or Electrical..The cars making top and bottom values with no issue. So i would ditch that particular map your trying.
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ONly guessing but that map was made when the engine wasn't running right,will that make a difference now the engine is ok
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If it did it before and after then its the map surely
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If it did it before and after then its the map surely
Have a look at requested fuel rail pressure and boost in the logs at the top of the page. ie it requests 110bar of fuelling all the way through the rev range, full load, and over 2bar of pressure.
last year, it only requested 110bar of fuel at over 4krpm, less load, and less than 2bar of boost after 3krpm.
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that stock map, is that your vw version or a mock version from a remap writer?..
I wouldn't be re-using a remap that was set up for your car when it was sick in the 1st place.
Try get rid and start afresh.
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^^^^^
That's good advice
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It's looking that wAy, yet another remap for my car........
I could always try a BigFish tuning remap! :signLOL:
Haven't had one of those yet :laugh:
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APR.....
(https://www.mk5golfgti.co.uk/forum/proxy.php?request=http%3A%2F%2Fwww.goapr.com%2Fincludes%2Fimg%2Fproducts%2F20ts3_265hp_full_kit.jpg&hash=c245882c15ebfb598f5b4a86d5a91ecfbf7aa58e)
:innocent:
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Too far away sy, plus I haven't heard many good things about their k04 map
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I know I'm a Superchips fan boy, but there's not much wrong with their torque limited stage 2 map they offer for your dsg car.As long as you get given the right one and it works :signLOL:
I would recommend R-Tech as a very good choice, along as Sy said. APR.
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Too far away sy, plus I haven't heard many good things about their k04 map
None of the others have worked :grin:
Their new revised maps are meant to be a huge improvment.
^^^^ the advanced party landed a while ago and has already purchased a Mk6 Gof R demo car, when I drove it last week was very pleasantly surprised by it, was a really good map and certainly feel as quick as the revo stage 2+ ko4s I have driven too :happy2:
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could just always leave it standard Dom :surprised:Still not sure if i am going to remap mine but it will either be revo,superchips or bft as they are all within a hours driven distance--R-tech are very good but its a 2.5hr drive away
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I've noticed mine can request different rail pressure in different logging sessions, maybe it requests more pressure when it's running well?
I would say the 2 bar spike is using the a lot of the fuel the pump can supply and it takes a while for the pump pressure to build up again after this. Your car looks to spool up very quick now but sort that spike out :happy2:
You will have different rail pressure readings as there are 5 main maps for rail pressure. The main rail pressure maps are based around the fuel stratergy, the rail pressure is lower for stratified injection and should be raised for homogeneous injection.
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On this log did you get throttle cut at 3000rpm??
Can you get logs of blocks 114?
What time of year did you last log the PD tuning map?
(https://www.mk5golfgti.co.uk/forum/proxy.php?request=http%3A%2F%2Fdaz.co%2Fmedia%2Fb150%2Fheavyd123%2Fnewlog.jpg&hash=1650bf6d09e79a60b762b65039a3ac8809b252ce)
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I didnt notice anything, I was trying to concentrate on going in a straight line at the time. :laugh:
I did the last log you had there friday night aswell as this one below.
The older logs were done last febraury, and all show similar readings
I had wheelspin at 3000rpm with the n75 log below hence why it goes strange there
(https://www.mk5golfgti.co.uk/forum/proxy.php?request=http%3A%2F%2Fdaz.co%2Fmedia%2Fb150%2Fheavyd123%2Fwastegate.jpg&hash=7e7ad3ee93a0efbc164915b3943532a9f239591d)
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I take it you got wheel spin with the graph I posted aswell?
You rail pressure drops when your RPM dips in both graphs, going from 113bar 3080rpm.
What are your mods?
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I've only got a milltek TBE and an itg intake on it now.
I didnt notice any wheelspin, but as you said, it might have slightly for the revs to drop :confused:
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I went back to PDtuning today and got the stage 2 map flashed fully onto the car (thanks Dave :happy2:)
Unfortunately for some reason it asks for even more boost than it did last week :surprised: :scared: :
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Very strange :stupid: lets try that tomorrow dom, see how it goes.
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Mine likes revo trail version :signLOL:
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Seeing as its mostly a new engine (new fuel pump, new internals, new turbo etc...), think the best thing is to start from scratch. The stg2 map we made was a one-off dyno tuned map made for your car as it was at the time, any changes can upset things.
If you want an easy fix we can map out the slight boost spike so that the logs look better, see if it hels with the fluctuating fuel pressure.
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Seeing as its mostly a new engine (new fuel pump, new internals, new turbo etc...), think the best thing is to start from scratch. The stg2 map we made was a one-off dyno tuned map made for your car as it was at the time, any changes can upset things.
If you want an easy fix we can map out the slight boost spike so that the logs look better, see if it hels with the fluctuating fuel pressure.
At last!! :signLOL:
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Different map, perfect results :pomppomp: :drinking:
But which company this time :signLOL:
(https://www.mk5golfgti.co.uk/forum/proxy.php?request=http%3A%2F%2Fdaz.co%2Fmedia%2Fb150%2Fheavyd123%2Flog1.jpg&hash=15c3e9560252d9f67b8d8994066f6d3185773fbf)
(https://www.mk5golfgti.co.uk/forum/proxy.php?request=http%3A%2F%2Fdaz.co%2Fmedia%2Fb150%2Fheavyd123%2Flog2.jpg&hash=15eb8182d9913c55d945ecec1cbbb1e7ff9558d0)
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Looking at the low boost requests..... VW's own stock map :chicken:
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MAF values look healthy.
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MAF values look healthy.
Very healthy 247.44 /0.8 = 309.3
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Revo stock?
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Methinks it's a PDT stage 2 map. :popcornsoda:
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It would only have lasted 4 hours..... :sad1:
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Just got to rake up £660 now :scared:
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Revo stg 2 :driver:
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Revo stg 2 :driver:
:drinking: :drinking:
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Just got to rake up £660 now :scared:
Is that for stage 2
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Revo stage 2 loaded onto car today (missus warned me this is the LAST remap Im allowed :ashamed:)
Thanks to Dave at PDtuning yet again :drinking:
Logs look healthy, slight overboost, but not as high as I was getting before. Got nice MAF values with this map aswell,
going by the old 267.14g/s / 0.8 = 333.925bhp :surprised:
I know its extremely unlikey, but would be interesting to see on the next RR day :popcornsoda:
Car drives well, and this is definetly the last remap going on the car :laugh:
(https://www.mk5golfgti.co.uk/forum/proxy.php?request=http%3A%2F%2Fdaz.co%2Fmedia%2Fb150%2Fheavyd123%2Frevo.jpg&hash=092dad3c92491a8f822ea5bf4c44e72b6f6d6e4b)
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looking good Dom--i was told of my missus am not allowed to sell mine---i will be getting revo on mine near the summer time
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So this is a stage 2 and not a 2+ map?
Usual questions are what's your settings and what intake do you have?
Nice maf numbers nevertheless... :happy2:
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So this is a stage 2 and not a 2+ map?
Usual questions are what's your settings and what intake do you have?
Nice maf numbers nevertheless... :happy2:
Yep stage 2.
settings are b7,t5,f9
running an ITG intake with a milltek TBE.
Looks like I'm going to have to get a HPFP again, as it requests 130 bar of fuel pressure. wish I hadnt sold my APR one :fighting:
looking good Dom--i was told of my missus am not allowed to sell mine---i will be getting revo on mine near the summer time
You might aswell jump on the bandwagon Andy :drinking:
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As we discussed Dom, it can request 170bar but the pump will only make what is physically possible. No need for the uprated hpfp until you demand 2500mb boost at stg2+