Removing Remap (VW)
Discussion
I have inherited presumably a very dodgy remap with the car and 4 months down the line it is still causing a lot of issues but no real benefits.
The main problem is turbo boost pressure reporting on VCDS (11: specified vs actual), which is almost always under 1atm or just above when flooring the car; turbo works and even brand new boost sensor was installed. That causes engine faults and limp mode over 70mph or going uphill.
I just want the remap gone so I can have a standard car than can be sorted out properly.
What are the options (in / near Birmingham) other than getting another, more sensible and more reputable remap? Is there a way to get dealership to do it? Sadly it is 1 year older than dieselgate cars so that update won't work.
The main problem is turbo boost pressure reporting on VCDS (11: specified vs actual), which is almost always under 1atm or just above when flooring the car; turbo works and even brand new boost sensor was installed. That causes engine faults and limp mode over 70mph or going uphill.
I just want the remap gone so I can have a standard car than can be sorted out properly.
What are the options (in / near Birmingham) other than getting another, more sensible and more reputable remap? Is there a way to get dealership to do it? Sadly it is 1 year older than dieselgate cars so that update won't work.
Just to clarify, the actual displayed boost pressure actually goes down to under 900mbar with light accelerator touch and takes a lot to push it over 1100mbar at over 3000rpm. The point is you can't have positive pressure under 1atm. This is nonsense in physical terms. I've not seen such behaviour on any VW TDI before, even with a faulty turbo. I have a CR 2.0TDI passat and it happily goes up where it needs to be, and never ever down.
I have not saved the graph so I could only post it a new one when I collect it back tomorrow (engine mount change).
Remap came with a car, and it was frankly responsible for broken DMF and further significant collateral damage. All I know it is "extreme" version rated at 185bhp for the humble 8V BMM engine. Probably the strategy is to simulate low pressure condition by some software trickery causing turbo to work a lot harder, except it doesn't work.
Lots and lots of things have been changed and checked over the time, including boost sensor, MAF sensor, N75, recon turbo, oil changes and all filters, EGR clean, DPF clean, pipes checked by garage and far too much spent on it. I really don't want to replace these all over again randomly. Myself and the garage are out of ideas and are left with the bad map possibility.
I have not saved the graph so I could only post it a new one when I collect it back tomorrow (engine mount change).
Remap came with a car, and it was frankly responsible for broken DMF and further significant collateral damage. All I know it is "extreme" version rated at 185bhp for the humble 8V BMM engine. Probably the strategy is to simulate low pressure condition by some software trickery causing turbo to work a lot harder, except it doesn't work.
Lots and lots of things have been changed and checked over the time, including boost sensor, MAF sensor, N75, recon turbo, oil changes and all filters, EGR clean, DPF clean, pipes checked by garage and far too much spent on it. I really don't want to replace these all over again randomly. Myself and the garage are out of ideas and are left with the bad map possibility.
I've finally had the chance to do the VCDS logs as requested
The whole thing is quite big to copy and paste in here so I'll post a link if you are willing to take a look for me please https://drive.google.com/file/d/0BwwKMF47pTAjUVR1M...
Log 01-003 accel in 3rd from 43s - 60s. 87s - fault at normal acceleration in D.
Log 01-011 27-37s
02- hard acceleration in D (no fault) 13-27s
03 - fault at 52s
For some reason it started throwing up Exhaust gas temp sensor 2 bank 1 error. Sensor was replaced and same thing popped back up in just a mile along with boost fault, and now can't be erased.
If you need any specific graphs please let me know.
The whole thing is quite big to copy and paste in here so I'll post a link if you are willing to take a look for me please https://drive.google.com/file/d/0BwwKMF47pTAjUVR1M...
Log 01-003 accel in 3rd from 43s - 60s. 87s - fault at normal acceleration in D.
Log 01-011 27-37s
02- hard acceleration in D (no fault) 13-27s
03 - fault at 52s
For some reason it started throwing up Exhaust gas temp sensor 2 bank 1 error. Sensor was replaced and same thing popped back up in just a mile along with boost fault, and now can't be erased.
If you need any specific graphs please let me know.
xjay1337 said:
Rather than wasting everyones time with abstract numbers, actually use the logging functionality on VCDS. Log these blocks.
003-008-042
011-033-042
From memory these should be EGT, boost spec and actual and fuel InjQ and rail P.
To log, 3rd or ideally 4th gear. Start at around 1200rpm. Click "START/GO" on logging. Apply maximum throttle and hold until redline (approx 5k). Then stop logging.
You will have to do it at least twice to get all measuring blocks.
Log these on VCDS. Use Turbo mode if you have the option. Post up or Email me the log file here.
Without these it's impossible to tell what's actually going on and a waste of everyones time and energy.
003-008-042
011-033-042
From memory these should be EGT, boost spec and actual and fuel InjQ and rail P.
To log, 3rd or ideally 4th gear. Start at around 1200rpm. Click "START/GO" on logging. Apply maximum throttle and hold until redline (approx 5k). Then stop logging.
You will have to do it at least twice to get all measuring blocks.
Log these on VCDS. Use Turbo mode if you have the option. Post up or Email me the log file here.
Without these it's impossible to tell what's actually going on and a waste of everyones time and energy.
Thanks for that. It is now time to work out the cheapest option to get rid of the remap.
I could try the small garage - pretty much a scrapyard - in London (3hr travel) that apparently did the remap for the previous owner, but unless they have the original file I don't want them near the car again.
I could ask dealership. Failing that what are the recommendation for businesses around Worcestershire and Birmingham? Thanks.
I could try the small garage - pretty much a scrapyard - in London (3hr travel) that apparently did the remap for the previous owner, but unless they have the original file I don't want them near the car again.
I could ask dealership. Failing that what are the recommendation for businesses around Worcestershire and Birmingham? Thanks.
xjay1337 said:
Sorry for delay in response.
000665 - Boost Pressure Regulation
P0299 - 000 - Control Range Not Reached - MIL ON
This is underboost. Basically car is asking for a given amount of boost and it's not getting it.
This can be a boost leak but if the car has been tuned then it's usually a mapping issue.
Looking at it in this case it appears that from 1600rpm or so at full throttle the car requests 2570.4 mbar which is 1.5bar .
In Log03 at around 52s.
Specified 2570.4
Actual 1897.2
This is why you get limp mode for P0299.
start with stock software and see what happens
000665 - Boost Pressure Regulation
P0299 - 000 - Control Range Not Reached - MIL ON
This is underboost. Basically car is asking for a given amount of boost and it's not getting it.
This can be a boost leak but if the car has been tuned then it's usually a mapping issue.
Looking at it in this case it appears that from 1600rpm or so at full throttle the car requests 2570.4 mbar which is 1.5bar .
In Log03 at around 52s.
Specified 2570.4
Actual 1897.2
This is why you get limp mode for P0299.
start with stock software and see what happens
xjay1337 said:
Phil at TRP developments should be able to do it. He is in Birmingham.
My tuner is based in Windsor and should be able to do it for £50 if not.
I looked at TRP and it appears they ceased operating around 2 months ago. So I would need some alternatives please. Windsor would be certainly doable. Thanks.My tuner is based in Windsor and should be able to do it for £50 if not.
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