MK5 Golf GTI
All Things Mk5 => Modifications & Technical Area => Technical Workshop => Topic started by: b21playa on November 05, 2011, 06:46:17 am
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My car isn't making as much boost as it should, so looking at what this
could be caused by
I've got a revision d diverted valve, new pcv. I will check all inter cooler hoses etc. foam air filter needs a clean
If it is the turbo, is it hard to remove? Any guides about?
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mapped? who's map?
any other mods?
Any logs to show us?
When doesn't it make boost in the rev range?
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mapped? who's map?
any other mods?
Any logs to show us?
When doesn't it make boost in the rev range?
Yes mapped with bluefin. Mods include carbonio intake, forge twintercooler, miltek sports cat, and tbe.
Was logged by jody at midlandvw. Will post logs of actual/specified vs rpm
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Ed30 or gti
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Take the map off, revert to STD and do some logging with VCDS. If you don't have the cable, look in the VCDS section and find someone close to you who may assist.
Don't write off the Turbo yet, lots of other possibles. The BF map is renown for being annoyingly playful.
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Ed30 or gti
Gti
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Get it logged standard, if its ok, you might be having the same issue i did with the BF map.
Mine would over boost, then just die around 4k, changed to REVO and no isssues
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What sort of boost should it be requesting and making?
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Get it logged standard, if its ok, you might be having the same issue i did with the BF map.
Mine would over boost, then just die around 4k, changed to REVO and no isssues
Just going to do this now
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What where the finding of the log?
Is the ecu asking for the load and the hardware not giving it, ie N75 duty cycle 95%+
I would not fit a new turbo yet, not until you know 100% what this issues are. We use scopes to look in to the turbo via the lambda boss and the DV location.
I have also found the D valves to leak and bleed boost off.
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What where the finding of the log?
Is the ecu asking for the load and the hardware not giving it, ie N75 duty cycle 95%+
I would not fit a new turbo yet, not until you know 100% what this issues are. We use scopes to look in to the turbo via the lambda boss and the DV location.
I have also found the D valves to leak and bleed boost off.
Can't post Csv files here.
Nick, if I send them to you, could you have a look?
Car definately much slower without bluefin on though
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im going threw the same issues as you at the mo but mine is a different turbo . boost to 5 psi then nothing threw the rev range , im hoping its something simple but i fear its the turbo :( as for removing them i found it a right pain when doing my swap . hope its something simple . on std ko3 sometimes the manifolds crack which could be your problem . i have a ko3 in the loft if needed
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im going threw the same issues as you at the mo but mine is a different turbo . boost to 5 psi then nothing threw the rev range , im hoping its something simple but i fear its the turbo :( as for removing them i found it a right pain when doing my swap . hope its something simple . on std ko3 sometimes the manifolds crack which could be your problem . i have a ko3 in the loft if needed
I guess you've changed the pcv and divertor valve?
What turbo you got? Ko4/hybrid?
Out of interest, what was with your ko3?
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i have a gt28 , i have the pcv fix and using a completly different dv set up , nowt wrong with my old turbo just upgraded
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i have a gt28 , i have the pcv fix and using a completly different dv set up , nowt wrong with my old turbo just upgraded
How much would you want?
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i put it on ebay tonight for 200 quid mate
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i put it on ebay tonight for 200 quid mate
How hard is it to change over the turbo?
Any guides?
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If you have access to a lift then the replacement isn't too bad if you have the tools. It's possible to do with the car on axle stands but I wouldn't recommend it...
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What where the finding of the log?
Is the ecu asking for the load and the hardware not giving it, ie N75 duty cycle 95%+
I would not fit a new turbo yet, not until you know 100% what this issues are. We use scopes to look in to the turbo via the lambda boss and the DV location.
I have also found the D valves to leak and bleed boost off.
Please see links to logs
With Bluefinhttps://docs.google.com/spreadsheet/ccc?key=0AilKf7s4AxAOdE1NVFVndDZOMTBpWEZQRmhPa1pHb0E (https://docs.google.com/spreadsheet/ccc?key=0AilKf7s4AxAOdE1NVFVndDZOMTBpWEZQRmhPa1pHb0E)
Back to standardhttps://docs.google.com/spreadsheet/ccc?key=0AilKf7s4AxAOdFRxdWhuNTFsLTc2UTNTczRNelJCaUE (https://docs.google.com/spreadsheet/ccc?key=0AilKf7s4AxAOdFRxdWhuNTFsLTc2UTNTczRNelJCaUE)
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I'm going to get the car in the ramps on Saturday to check all pipe work and the divertor valve. I'm hoping it's just something simple
Had jody at midlandvw look at the logs, he says on standard map it seems to be boosting ok and meeting the request, but mapped it doesnt
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From what I can see both tuned and stock maps are making the same top end load. What fuel are you using?
We are based in the Midlands you more than welcome to pop down so i can do a log and visual check for you.
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From what I can see both tuned and stock maps are making the same top end load. What fuel are you using?
We are based in the Midlands you more than welcome to pop down so i can do a log and visual check for you.
Car is always ran with either v-power or tesco momentum.
Please check pm
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Leak found in pipe fittings to the original intercooler, they were missing the o-rings , causing boost leaks. It looks like when the twintercooler was fitted they left the rings out
New o-rings fitted and the car feels a lot better
Will get some logs done in the morning
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thats great news , which mine was that simple
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thats great news , which mine was that simple
I was over the moon, pulls a lot harder, wants to spin the wheels every time I floor it
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New log
https://docs.google.com/spreadsheet/ccc?key=0AilKf7s4AxAOdDZ4aXc4ZFo3MlJLd2Q1b0VsTzJJMHc&hl=en_US#gid=0 (https://docs.google.com/spreadsheet/ccc?key=0AilKf7s4AxAOdDZ4aXc4ZFo3MlJLd2Q1b0VsTzJJMHc&hl=en_US#gid=0)
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Is this a stage 1 map?
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Is this a stage 1 map?
Think it's a stage 2, was already done before I got car
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New log
https://docs.google.com/spreadsheet/ccc?key=0AilKf7s4AxAOdDZ4aXc4ZFo3MlJLd2Q1b0VsTzJJMHc&hl=en_US#gid=0 (https://docs.google.com/spreadsheet/ccc?key=0AilKf7s4AxAOdDZ4aXc4ZFo3MlJLd2Q1b0VsTzJJMHc&hl=en_US#gid=0)
That look almost identical to the map they sent me. Overboost pretty much all the time.
Basically stage 1 bluefin is great, they never, after 17files got it to actually run correctly on my car. Revo was perfect 1st time.
I am however not exactly qualified to say its defo the map thats causing your issue could be many other things im sure.
http://www.mk5golfgti.co.uk/forum/index.php/topic,18519.0.html look at my post.
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New log
https://docs.google.com/spreadsheet/ccc?key=0AilKf7s4AxAOdDZ4aXc4ZFo3MlJLd2Q1b0VsTzJJMHc&hl=en_US#gid=0 (https://docs.google.com/spreadsheet/ccc?key=0AilKf7s4AxAOdDZ4aXc4ZFo3MlJLd2Q1b0VsTzJJMHc&hl=en_US#gid=0)
That look almost identical to the map they sent me. Overboost pretty much all the time.
Basically stage 1 bluefin is great, they never, after 17files got it to actually run correctly on my car. Revo was perfect 1st time.
I am however not exactly qualified to say its defo the map thats causing your issue could be many other things im sure.
http://www.mk5golfgti.co.uk/forum/index.php/topic,18519.0.html look at my post.
Superchips "lets try that" desktop remapping vs Revo actuall real time "tuning"
Ever wonder why superchip tune every car out there, and Revo stick with just VAG (and ME9 Ford).. :wink:
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What where the finding of the log?
Is the ecu asking for the load and the hardware not giving it, ie N75 duty cycle 95%+
I would not fit a new turbo yet, not until you know 100% what this issues are. We use scopes to look in to the turbo via the lambda boss and the DV location.
I have also found the D valves to leak and bleed boost off.
Should all N75 duty cycles request 95% + And then start declining as boost is applied