I decided to play with VCDS to try and force my fuel guage to be more truthfull at the bottom part of its range, I want it to show empty when it is empty and not with its "virtual reserve" capacity unused, ideally the remaining miles to be truthfull as well but not sure if that would actually happen.

 

I had just watched a youtube video of someone changing the values in VCDS on a Golf, it showed the reference value of 112 ohms and it could be changed within tha range of IIRC 100 ohms and 128 ohms, something like that, he made the changes & then went to measuring blocks and it was apparent that when he changed to the max & min values not only did his guage go from 1/8 to 3/8 of a tank but the system saw the fuel quantity change from 5 to 11 litres, again something like that I cant recall the exact values.

 

I had just brimmed my tank squeezing in 56 litres or so and have only driven 6 miles, VCDS advanced measuring values (no measuring blocks) showed the tank capacity to be 56l, I wanted to get this up to 60l and I would do some more checks when the tank was nearly empty.

 

I also found measuring blocks for fuel senders 1, 2 and 3 and mine had values for senders 1 & 2 of 27 and 33 ohms respectively, I have seen the large bayonet fittings on each upper side of my fuel tank, I had thought that one was the sender the other the fuel pump plus pick up & return pipes, does it actually have twin senders so as not to have a false reading if fuel sloshes from one side to the other after cornering?

 

My question on the adaption values, it shows the existing figure as 0.0 but does not indicate the allowable range, I tried using 1.0 which was accepted but it did not seem to make any difference, does anybody know what range of values is available? Are they plus and minus say from 1 to 10 meaning 90 to 110% for instance? The default figure of 0.0 does not give me any clues.

 

 

Edited 6 October, 20214 yr by J.R.

@J.R. you appear to have a weird stalker. 

Its been reported, its a second identity created by someone that was displaying very weird behaviour on a thread about decreased fuel economy, it has been deleted (I made no complaint) so I guess he went even further.

 

Then I got a very abusive PM with a photograph of a gravestone from the new identity, that was reported as well.

 

To the moderators I apologise that you should have to be dealing with stuff like this, you are certainly appreciated.

I reported a couple of their first posts just thinking it was spam, but then noticed the pattern.

Thanks for that and once again sorry to the moderators who have to action these things.

Dual identity created 5 hours ago, 8 posts of which only 4 remain so I would say the ones you reported were taken down, some that I did read have already gone.

21 minutes ago, Breezy_Pete said:

I reported a couple of their first posts just thinking it was spam, but then noticed the pattern.

I just reported another of their posts on a different subject. Seems to be a troll.