Turbo log and remap

[dino190]

 Please can I have an opinion on the following. To those who have helped with previous related posts, thankyou.

 

I have hopefully attached the turbo log from my 06 1.9 tdi bxe 4x4. It got a stage one remap a year ago.

 

I am advised that the overboost on the turbo log is excessive and the car should be looked at for a possible cause.

 

I have taken it to a vag specialist who can find nothing wrong with the car other than a slightly noisy turbo, and state that the overboost will be down to the remap. I do not feel that the remap changed the car much.

 

Is the overboost an issue with the car or is it down to the remap?? If it is an issue with the car what should I be considering?? If it is down to the remap, is it just an unsuitable map??

 

Does anyone have a turbo log from a standard car, and a remapped car for comparison??

 

Many thanks.

[andsoutham]

yeah that is overboosting a lot and looks like its maxing out the MAP sensor so may be even higher still. I would be avoiding driving it hard at the moment as that much boost will probably knacker your turbo before long. I would talk to a reputable mapping company like Shark performance or Derv tech who may be able to load a stock map back onto your car and see what happens and go from there.

 

Where is this map from may I ask?

 

Andy

[willy0329]

 Please can I have an opinion on the following. To those who have helped with previous related posts, thankyou.

 

I have hopefully attached the turbo log from my 06 1.9 tdi bxe 4x4. It got a stage one remap a year ago.

 

I am advised that the overboost on the turbo log is excessive and the car should be looked at for a possible cause.

 

I have taken it to a vag specialist who can find nothing wrong with the car other than a slightly noisy turbo, and state that the overboost will be down to the remap. I do not feel that the remap changed the car much.

 

Is the overboost an issue with the car or is it down to the remap?? If it is an issue with the car what should I be considering?? If it is down to the remap, is it just an unsuitable map??dfg.jpg

 

Does anyone have a turbo log from a standard car, and a remapped car for comparison??

 

Many thanks.

Can you answer a few questions to give a bit more information please,

 

which companys remap is on the car ?

 

has it only just started overboosting or has it always done this since the remap ?

 

did the car go into limp mode to protect its self, if yes what fault codes did the garage find ?

 

if it has only just started to overboost i would say its not the remap causing the overboost as it would of done it from day one,your log shows the requested boost which is what the map is requesting and something is causing it to spike and cut out ,

if the garage has scaned the car what fault codes did they get ? this may help locating the fault but it seems they just want to blame the remap, you could have a faulty sensor somewhere or even a faulty egr can cause hesitation/boost  problems .

[dino190]

 Thankyou very much for the replies.

 

The map is a Shark stage 1 installed by a highly regarded company/person.

 

I have had the car just over 2 years and had the remap done a year ago. Unfortunately I have only had the one set of logs taken some time after the remap, and since the car has not felt any different during the whole time of ownership I cannot say that it was there or not before the remap. However, my gut feeling is it was, because I drove other similar engined cars, and this one felt different, a little flat, difficult to explain. The only other thing it does, is a slight 1 or 2 second stutter during light acceleration in 3rd gear, but that seems to have almost disappeared following the replacement of a clogged looking fuel filter, and the blanking off of the egr (egr previously switched off with the remap).

 

It has never gone in to limp mode, and it has never thrown a fault code in several VCDS checks, other than a glow plug on its last check.

 

The garage (summarised) are suggesting that there is nothing obviously wrong with the car and no fault codes, and that what can happen is a generic map is fitted to a vehicle, which may not suit that vehicle, and the best way of mapping is a custom job of some sort.

 

I have only spoken to Shark man once, saying that I didn't think it had done anything, his response was "it's a good map".

 

Local vag lads can if I wish flash the ECU, that would return it to standard I think?? then I could do the turbo log again. But I wanted some advice before doing so, because I need to speak to Shark lad again and it would mean dumping a 200 pound map.

[willy0329]

 Thankyou very much for the replies.

 

The map is a Shark stage 1 installed by a highly regarded company/person.

 

I have had the car just over 2 years and had the remap done a year ago. Unfortunately I have only had the one set of logs taken some time after the remap, and since the car has not felt any different during the whole time of ownership I cannot say that it was there or not before the remap. However, my gut feeling is it was, because I drove other similar engined cars, and this one felt different, a little flat, difficult to explain. The only other thing it does, is a slight 1 or 2 second stutter during light acceleration in 3rd gear, but that seems to have almost disappeared following the replacement of a clogged looking fuel filter, and the blanking off of the egr (egr previously switched off with the remap).

 

It has never gone in to limp mode, and it has never thrown a fault code in several VCDS checks, other than a glow plug on its last check.

 

The garage (summarised) are suggesting that there is nothing obviously wrong with the car and no fault codes, and that what can happen is a generic map is fitted to a vehicle, which may not suit that vehicle, and the best way of mapping is a custom job of some sort.

 

I have only spoken to Shark man once, saying that I didn't think it had done anything, his response was "it's a good map".

 

Local vag lads can if I wish flash the ECU, that would return it to standard I think?? then I could do the turbo log again. But I wanted some advice before doing so, because I need to speak to Shark lad again and it would mean dumping a 200 pound map.

I would contact shark at there hq and explain the problem i am sure they will be able to offer advise/help as they are one of the top re-mappers around i wouldnt dump the map only to find thats not the problem and loose £200+  

[andsoutham]

yeah speak to shark directly and they should be able to help. the shark stage 1 software is generally excellent and both my fabia and octy vrs have been transformed by them.

 

Has the car ever had a replacement turbo fitted? it could be that the actuator or stop screw is set up wrong which is making the turbo over boost. Also check the vaccume line which goes down to the turbo actuator. If it is leaking then the turbo veins wont be able to open properly which could also cause overboost.

 

Andy

[dino190]

 Ideal many thanks. I was in a bit of a quandary, because without any fault codes I wasn't sure what on the car could be responsible. The car is going in for a wee bit of work soon so I will suggest the points you raised re possible causes of overboost.

 

As far as I am aware, the car has never had a replacement turbo. It was bought from a main dealer with an extensive and detailed history and loads of receipts.

 

I plan to speak to Shark again soon, this was my last punt at asking the forum for help with understanding more about the overboost and its causes.

 

The Shark lad has offered to put the map back on for nowt, so I could return it to normal and take the logs again, just to eliminate the map as the cause. Will provide an update if and when it gets resolved.