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fontes



Member Since: 29 May 2011
Location: Coimbra
Posts: 35

Portugal 
2011 PUMA Power Delay
Hi,

Iīm kind off new here,

I bought a 2011 td4 on may.

Since then I been tweaking it a little but havenīt got much time so the project is going slowly.

Until know on the engine side I removed the Cat, the mid exhaust and got the ecu tunned by BellAuto.

I have done so far around 3000km.

Only yesterday after mounting my King shocks I had the chance go test the car off road and honestly.. it really sucks.

Every time I change Gear down the car accelerates a bit by it self and then loses power.

For example when approaching a bend I change the gear down from 4š to 3š, and put the foot down, the engine only responds after the bend, +- 1 to 1.5 sec later.

When Iīm driving straight on road 50 or 60 kph for example, I let the accelerator and them floor it again and I hardly feel any change, in my previous td5 if I did this it would stick me to the sea.

Has anyone had this experience?

Is this normal?

Although the td4 is brand new I still have my 1998 td5 and Iīm seriously thinking on seleing the td4 and stick with the td5.


Best regards

Paulo Fontes

Portugal


Last edited by fontes on 23rd Oct 2011 7:25pm. Edited 1 time in total
Post #95750 23rd Oct 2011 12:48pm
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scotty38



Member Since: 21 May 2011
Location: Lincolnshire
Posts: 571

England 2012 Defender 110 Puma 2.2 USW Aintree Green
What was it like before you removed the engine components and had it tuned?
Post #95753 23rd Oct 2011 1:14pm
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Lorryman100



Member Since: 01 Oct 2010
Location: Here
Posts: 2686

I would email Pete at BAS and tell him what mods you have done since first purchasing the remap. The throttle lag/latency can be fixed in the tune as Gary did that with my Alive tune. It sounds as though you have some flat spots which seem to be more noticeable now with the changes you have done to the exhaust system. All of it is fixable by redoing the remap file so drop BAS an email with everything you have changed and I'm sure he will get on to it. Thumbs Up


Brian.
Post #95754 23rd Oct 2011 1:27pm
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pom



Member Since: 01 Jun 2010
Location: Worcester
Posts: 1343

mine does that as well, there is a lag from when you take your foot off the throttle until the revs drop.

The loaner I had during service did it as well.

Pom
Post #95758 23rd Oct 2011 2:16pm
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fontes



Member Since: 29 May 2011
Location: Coimbra
Posts: 35

Portugal 
scotty38 wrote:
What was it like before you removed the engine components and had it tuned?



The same but with less power.

I just noticed how bad It is because it was the first time I took it offroad.
Post #95767 23rd Oct 2011 3:26pm
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fontes



Member Since: 29 May 2011
Location: Coimbra
Posts: 35

Portugal 
Lorryman100 wrote:
I would email Pete at BAS and tell him what mods you have done since first purchasing the remap. The throttle lag/latency can be fixed in the tune as Gary did that with my Alive tune. It sounds as though you have some flat spots which seem to be more noticeable now with the changes you have done to the exhaust system. All of it is fixable by redoing the remap file so drop BAS an email with everything you have changed and I'm sure he will get on to it. Thumbs Up


Brian.


I hope so but the problem with standard tune is even worse!
Post #95769 23rd Oct 2011 3:28pm
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pjw4233



Member Since: 30 Nov 2009
Location: Lake District & Cheshire
Posts: 273

United Kingdom 2011 Defender 90 Puma 2.4 HT Stornoway Grey
I've have the same symptoms on both my 2009 and 2011 Puma, I've learned to live with it. I don't think the anti stall helps at times whilst off roading as this can cause slight acceleration at the wrong time.
Post #95771 23rd Oct 2011 3:50pm
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K9F



Member Since: 12 Nov 2009
Location: Bournemouth
Posts: 9610

United Kingdom 2008 Defender 90 Puma 2.4 XS CSW Stornoway Grey
As stated in previous threads....

Remaps are produced for certain vehicle configurations, should you alter these configurations for example with larger intercooler, decat pipe, or big bore exhaust etc. unless the map (be it original or otherwise) is configured for your enhancements there is a danger it will throw the map out and your vehicle will not operate correctly and or run like a bag of spanners.

It could of course also be something simple like a MAF sensor or EGR Valve As suggented in your case BAS would be my first port of call. Running rough on the standard tune I would look at what you have 'tweaked' since then or a component failure. Good luck!

Thumbs Up If you go through life with your head in the sand....all people will see is an ar5e!!

Treat every day as if it is your last....one day you will be right!!
Post #95784 23rd Oct 2011 5:57pm
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fontes



Member Since: 29 May 2011
Location: Coimbra
Posts: 35

Portugal 
K9F wrote:
As stated in previous threads....

Remaps are produced for certain vehicle configurations, should you alter these configurations for example with larger intercooler, decat pipe, or big bore exhaust etc. unless the map (be it original or otherwise) is configured for your enhancements there is a danger it will throw the map out and your vehicle will not operate correctly and or run like a bag of spanners.

It could of course also be something simple like a MAF sensor or EGR Valve As suggented in your case BAS would be my first port of call. Running rough on the standard tune I would look at what you have 'tweaked' since then or a component failure. Good luck!

Thumbs Up


Hi,

Iīm in touch with Pete at BellAuto, what Iīm trying to understand is if this is a "standard" flaw on td4īs or a particular case in mine, as far as I know the maps where made for the changes I have in my vehicle.

Regards,

Paulo Fontes
Post #95795 23rd Oct 2011 7:23pm
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K9F



Member Since: 12 Nov 2009
Location: Bournemouth
Posts: 9610

United Kingdom 2008 Defender 90 Puma 2.4 XS CSW Stornoway Grey
fontes wrote:
what Iīm trying to understand is if this is a "standard" flaw on td4īs or a particular case in mine, as far as I know the maps where made for the changes I have in my vehicle. Regards, Paulo Fontes


In my experience it is most definately NOT a standard flaw on TD4s. Mine ran 'quite sweet' as standard and the only flatspot is when I hit the limiter! Laughing Mine had a remap two years or so ago and now runs 'sweet as a nut' with no flatspots at all! There have been historical issues with maps and flatspots but anyone 'worth their salt' in the business of providing remaps will tell you that feedback is welcomed and it is in their best interests to produce as near 'perfect a map' as you desire. I think personally your problems are akin to your vehicle as flatspots do not appear to be the norm on TD4s. I've had three different ones on loan and not had any problems with any of them over the last three years plus of ownership!

Again good luck in ironing out your flatspot! If you go through life with your head in the sand....all people will see is an ar5e!!

Treat every day as if it is your last....one day you will be right!!
Post #95802 23rd Oct 2011 8:16pm
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twopoint6khz



Member Since: 18 Aug 2011
Location: North Lakes
Posts: 652

United Kingdom 2005 Defender 110 Td5 CSW Java Black
K9F wrote:
Again good luck in ironing out your flatspot!

Surely if a spot is flat, ironing it is the last thing you'd want to do? Laughing

Anyway I don't think any electronically controlled turbo-diesel is ever going to have the instant response of a big petrol engine, even if they do have similar torque figures. Most of that torque is reliant on the turbo which always introduces some kind of a delay (unless you go for a silly sized one, which could give you instant response but no top end).


Last edited by twopoint6khz on 23rd Oct 2011 9:23pm. Edited 1 time in total
Post #95805 23rd Oct 2011 8:44pm
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JSG



Member Since: 12 Jul 2007
Location: Berkshire
Posts: 2412

United Kingdom 2011 Defender 110 Puma 2.4 XS CSW Stornoway Grey
Not noticed it on either of my Pumas John

http://www.hampshire4x4response.co.uk

2011 Tdci 110 CSW XS
Post #95812 23rd Oct 2011 9:00pm
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fontes



Member Since: 29 May 2011
Location: Coimbra
Posts: 35

Portugal 
JSG wrote:
Not noticed it on either of my Pumas


I donīt know if I explained myself very good, itīs not on normal use, itīs driving the car flat out off road.
Itīs road manners are impeccable.


What Iīm saying itīs for example reeving 2 gear as much as possible and changing to 3 as fast as possible, almost without decelerating.
Post #95821 23rd Oct 2011 9:34pm
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JSG



Member Since: 12 Jul 2007
Location: Berkshire
Posts: 2412

United Kingdom 2011 Defender 110 Puma 2.4 XS CSW Stornoway Grey
fontes wrote:
JSG wrote:
Not noticed it on either of my Pumas


I donīt know if I explained myself very good, itīs not on normal use, itīs driving the car flat out off road.
Itīs road manners are impeccable.


What Iīm saying itīs for example reeving 2 gear as much as possible and changing to 3 as fast as possible, almost without decelerating.


I got that - I've not noticed it with either of mine off road. I'm not sure I'd drive flat out off road though so maybe that's why. John

http://www.hampshire4x4response.co.uk

2011 Tdci 110 CSW XS
Post #95829 23rd Oct 2011 9:51pm
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K9F



Member Since: 12 Nov 2009
Location: Bournemouth
Posts: 9610

United Kingdom 2008 Defender 90 Puma 2.4 XS CSW Stornoway Grey
twopoint6khz wrote:
K9F wrote:
Again good luck in ironing out your flatspot!

Surely if a spot is flat, ironing it is the last thing you'd want to do? Laughing


Good point! Well presented! Rolling with laughter Shall we say, fluffing up, inflating, encouraging and coaxing skyward, or just reaching a crescendo then? Thumbs Up

JSG wrote:
I'm not sure I'd drive flat out off road though so maybe that's why.


Me neither, also unless you are on a flat plain with a good solid surface how can you tell with so many variables to consider and take into account such as terrain, surface traction, engine loading etc. etc. especially 'flat out'? You describe your gearchange as 'almost without decelerating' but decelerate you obviously are....by how much exactly? Must be difficult to gauge surely? If you go through life with your head in the sand....all people will see is an ar5e!!

Treat every day as if it is your last....one day you will be right!!
Post #95844 23rd Oct 2011 10:48pm
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