Pro and Cons of Chipping D3 diesel

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Originally Posted by Leroy_Riding

BAS remap is on the list of things for my D3 in the future, though my only aim will be to try and remove the horrid turbo lag,

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Leroy - while there is a little turbo lag - what you are feeling as turbo lag is indecision by the gearbox ECU and is a well known design issue. To demonstrate try driving in command shift and manually moving the gears and I think that you will find the lag is considerably less.

For sure off the line there is a lag when you floor it and this is turbo lag but in situations where you are slowing to come to a stop but you then do not stop and you have no go that is the gearbox ECU not knowing what gear to put the box in so momentarily does nothing - when coming to a stop the gearbox stays in 3rd (maybe second) until you stop then into 1st ready for takeoff. But if you do not come to an actual stop and hit the accelerator to get across a road the gearbox ECU has a hissy fit and takes a while to decide what to do - note in these circumstances after the pause it then takes off like a scalded cat as the ECU has finally decided to pick the right gear.

I have nearly had a couple of incidents trying to get across roads with the car moving out into traffic and dying, so I always make sure I have enough room to take into account the lag and also stay far enough back for the rush.

As far as mapping to help with the issue - some say it works but I have a BAS map on my car and it made no difference. Getting the gearbox software updated may assist with the pregnant pause.

Garry

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Originally Posted by garrycol

Leroy - while there is a little turbo lag - what you are feeling as turbo lag is indecision by the gearbox ECU and is a well known design issue. To demonstrate try driving in command shift and manually moving the gears and I think that you will find the lag is considerably less.

For sure off the line there is a lag when you floor it and this is turbo lag but in situations where you are slowing to come to a stop but you then do not stop and you have no go that is the gearbox ECU not knowing what gear to put the box in so momentarily does nothing - when coming to a stop the gearbox stays in 3rd (maybe second) until you stop then into 1st ready for takeoff. But if you do not come to an actual stop and hit the accelerator to get across a road the gearbox ECU has a hissy fit and takes a while to decide what to do - note in these circumstances after the pause it then takes off like a scalded cat as the ECU has finally decided to pick the right gear.

I have nearly had a couple of incidents trying to get across roads with the car moving out into traffic and dying, so I always make sure I have enough room to take into account the lag and also stay far enough back for the rush.

As far as mapping to help with the issue - some say it works but I have a BAS map on my car and it made no difference. Getting the gearbox software updated may assist with the pregnant pause.

Garry

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you are a great source of knowledge :)
if the map wont fix that i wont bother with it.
thanks :)
Leroy

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Originally Posted by Leroy_Riding

you are a great source of knowledge :)
if the map wont fix that i wont bother with it.
thanks :)
Leroy

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As I said, didn't work for me but others claim it made an improvement.

The map will definitely improve your vehicle, particularly in the mid-range (at the speeds you tend to drive, tow and overtake on the highway).

Well worth the cost.

Garry

Well the good thing Tombie is we all have a choice on what to do in life, no matter what the opinion from others is.

I do tow a lot, towed a 2.7 ton van with my chipped X5 and did 60,000km. I don't do off road slogging (X5 not really designed for this) and I won't be in the D3 either. Yes you are correct with the fuel rail pressure changing, it changes all the time as rmp, load etc changes, whether I have a chip in or not. As for what it's current map was and how it was altered, well I was far too busy reading my caravan mag and next destination rather than worrying about that !
I also have a colleague who has a chipped Touareg towing a 3 ton van with no issues doing a large number of KM's over 2 years, happy as Larry !

So the good thing is you do not need to worry about it Tombie since you are not putting one in. I am putting one in and I am not worrying about it either, so we are all happy !!!

If my engine goes Kaaa Boooom, then I will let you know then you can have a smile....:)

If anyone is interested, then read the FAQ on the DP Chip Web site FAQ | DPChip which gives more detail than I could ever give. Check the testimonial area out too, I have included an interesting one based on the insurance comment that was posted earlier

Happy days to all :cool:

Quote taken from testimonials......
"It is important to advise your Motor Vehicle Insurer that you have a D P Chip fitted to your vehicle when completing “accessories or modification” section of your Insurance Proposal declaration. The reason is so the Insurer can increase the vehicle’s value in the event of a total write off claim and NOT for the reason that they can impose an extra premium of refuse a claim. We have contacted both of our Motor Vehicle Insurance underwriters through our Brokers and they have no issues with fitting a DPCHIP (they are different to other Chips available on the market) providing it has been stated on the proposal form or they have been advised that a DPCHIP has been fitted at a later date. We have used DPCHIPs in all our fleet vehicles for some 5 years now without any Insurance issues."

Well good for you..
Taking that tone...

60,000km is SFA in the design life of an engine - so whilst you are happy the engine is likely wearing quicker - simple principals at stake there...

You are very astute though in your observations that I don't care what piece of electronic (or mechanical) junk you fit to your vehicle.

I do find it greatly amusing (so already have the smile going) that you are blowing excessive cash on the poor substitute rather than a proper remap and diagnostic tool - which cost less than the item you rave about.

Keep trying to justify the unit to yourself... That's the benefit of a free society and choice.

It allows illogical or irrational decisions to be validated in the mind of the purchaser.


It's like choosing between a good woman or an inflatable doll.
Both will get the job done, but one will do it better.

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Originally Posted by Tombie

Keep trying to justify the unit to yourself... That's the benefit of a free society and choice.

It allows illogical or irrational decisions to be validated in the mind of the purchaser.

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Cognitive Dissonance comes to mind.

Cognitive dissonance - Wikipedia, the free encyclopedia

Dear Tombie

You have a lot of experience from your posts and thank you's which is obviously very good and I am sure valued by many.

I see you are also from Whyalla, I lived there and worked for BHP in the 80's, interesting place, lots of good friends were made there.

Interesting comment re the blow up doll, you are right, they don't talk back, have headaches, get tired, complain and are always willing, if that is your preference, then no judgement from me

Look, I can see so many problems with Discoveries on this forum, electrical, engines, suspension, compressors gearboxes etc etc, I think a chip is the least of my worries !!! I have not seen any example of any Landrover that has had an engine problem contributed to a DP chip, I have seen MANY engine problems without a DP Chip.

There is a lot of doom and gloom portrayed and I agree there are dodgy chips out there, my opinion based on experience has been very good with them. I already owned it, paid as your state $1500 over 4 years ago, so no new outlay for the D3 for it.

One of my favorite sayings is "A man with an experience is never at the mercy of a man with an argument"
A lot of folks argue against, but no one has shown me any evidence of failures. Even saying my BMW engine would have worn more internally after 60k is pure speculation without pulling it apart and checking it.

Anyway, I'm enjoying the banter and I respect your views and I hope you respect mine, even though you think they are wrong based on argumentative unsubstantiated theory....it also took a while for the folks to believe the earth was round not flat.

Must be time for as drink,

Cheers all

So why do people think that the world is round? That's a 2D description. It's actually a sphere....

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Originally Posted by bsperka

It's actually a sphere....

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More like an oblate spheroid actually ;)

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Originally Posted by bsperka

So why do people think that the world is round? That's a 2D description. It's actually a sphere....

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I had thought slightly pear shaped but I love a good arguement anyway! :cool:

who said that?
:wasntme:

chill guys it's Friday, who gives a toss. Pay your money and take your chance, bigger things to worry about in life. :p