Thread: What happened to your D3/D4 today?

Originally Posted by shack

Brad.. Is your car remapped? I can't remember.

From what I'm seeing ,most of the wildly inaccurate usage readings come from remapped cars, particulary when towing, I can see why it's happening as well based on what a lot of places do to "tune" them.

There's no possible way for it to be accurate afterwards.

Cheers
James

Mine was wildly inaccurate before and after the tune...up to a rediculous 25% most of the time.

Before the tune,while under warranty,LR said they had done their best and could not do anymore to sort it.

I reckon mine is very accurate, always seems to say between 11.2 & 12.2 around town. Haven’t done a long run for a while but I have never seen under 10.1 in the 10 years we have owned the D3..

Guess you can’t be disappointed if it’s not telling the fibs some are being told..

Bulletman

Originally Posted by shack

Brad.. Is your car remapped? I can't remember.

No. It has had the EGR and DPF programmed out, but otherwise stock. Its level of optimism hasn't changed since the loss of the EGR and DPF, it's always been a fair bit under.
Not that it worries me, but it's one of those "it really can't be that hard, the bloody ECU knows how much fuel it's putting in to the micro-droplet". It just seems there's a disconnect somewhere between what the ECU is saying and the dash is hearing. It is a UK import, so maybe the ECU is in micro-hogsheads and the dash is in imperial gallons.

Originally Posted by BradC

No. It has had the EGR and DPF programmed out, but otherwise stock. Its level of optimism hasn't changed since the loss of the EGR and DPF, it's always been a fair bit under.
Not that it worries me, but it's one of those "it really can't be that hard, the bloody ECU knows how much fuel it's putting in to the micro-droplet". It just seems there's a disconnect somewhere between what the ECU is saying and the dash is hearing. It is a UK import, so maybe the ECU is in micro-hogsheads and the dash is in imperial gallons.

Disconnect? No it’s the marketing engine of LR keeping you believing a furphy. It’s very deliberate it doesn’t read accurately

The CCF can be altered using a diagnostic tool to adjust the fudge (sorry, correction) factor which is set very optimistically ex factory.

Originally Posted by Graeme

The CCF can be altered using a diagnostic tool to adjust the fudge (sorry, correction) factor which is set very optimistically ex factory.

From what I've seen.. of the more commonly available tools.. Only a IID , nanny doesn't seem to work, I've tried with no result at this stage.

Faultmate worked on my D4. IIRC the range is -15 to +15 and ex factory was -7 but +7 was about right most of the time for me.

I just bought an OBD2 AUSTRALIA dongle for $39 for my other cars and super impressed what it can do and display via the app. Have not tested on the Disco yet.

OBD2 Car List – OBD2 Australia