Advice needed for k04 conversion

[jhook661]

could you log your fuel trim (block 032) and post the results?
You don't need to start the car, just turn on the ignition and log for a second.

So on idle it's 0.9 and partial -6.3 ??

[bacillus]

could you log your fuel trim (block 032) and post the results?
You don't need to start the car, just turn on the ignition and log for a second.

So on idle it's 0.9 and partial -6.3 ??

That's unremarkable so, is your actual fuel rail pressure keeping up with the requested value (block 230)?

[jhook661]

could you log your fuel trim (block 032) and post the results?
You don't need to start the car, just turn on the ignition and log for a second.

So on idle it's 0.9 and partial -6.3 ??

That's unremarkable so, is your actual fuel rail pressure keeping up with the requested value (block 230)?

So my specified is 129.99 and at points I'm dropping between 6-9 bar of rail pressure

[bacillus]

So my specified is 129.99 and at points I'm dropping between 6-9 bar of rail pressure

What hpfp are you using as it sounds like your pump can't cope with the requested demand.
Do you have a RS4 fuel pressure valve fitted?

[jhook661]

So my specified is 129.99 and at points I'm dropping between 6-9 bar of rail pressure

What hpfp are you using as it sounds like your pump can't cope with the requested demand.
Do you have a RS4 fuel pressure valve fitted?

Deatschworks lpfp
Loba hpfp
Rs4 prv
I can email you logs over if you like ?

[Kai96]

You haven't been treated right at all in my opinion. They should of made sure everything was mechanically sound with the car before carrying out any modifications. What I'd do is see who the top person is CEO, area manager, director etc and get some contact details  for them if its possible. When I complain these days I don't even bother going through the little people at the bottom, it always seems like when someone way above them is involved they like to act right and do what they should of done in the beginning.

Good luck getting your problems sorted.

[jhook661]

Thanks @Kai96 

[bacillus]

The loba pump should easily meet the requested 130 bar plus some more with the rs4 prv at all rpm range.
Two things spring to mind, have you logged your lpfp requested and actual values (block 231) and secondly are you sure your cam follower is in good condition?

[jhook661]

Cam follower is spot on and @5,500 revs the lpfp
Specified is 4.4 bar and actual is 4.3 also brand new fuel filter too genuine 6.6 bar

[r5gtt]

I'd personally say you have it your all and the people that did this conversion need to resolve the issue FOC as this is down to them taking your hard earned money and not giving you the car back as it's meant to be and instead sending you off with a car over boosting and fuel not meeting requirements

[r5gtt]

@Paradox1 

[Dan_FR]

I hate joining topics when there are soooooo many posts......


First of all...... Did the same garage that loaded the Revo software do this conversion for you? They did not 'map' it in the sense you are thinking of and have simply loaded it to the car. They have also fitted second hand parts at your request and as such i doubt there is any warranty on any of the work provided. That being said they should have logged the car to setup the software and would then be aware of this issue. From then on they should have asked you what you wanted them to do.....

Secondly - Have you fitted the S3(K04) injectors at the same time? As you don't mention this........ If you are running the correct injectors and an uprated fuel pump then you would have plenty of fuel available for Revo Stage 3.

As was already discussed, do not change any engine sensors, you need to keep the 2.5 bar map sensor and standard rail pressure sensor too. How are you recording the 23 psi spike? standard sensor will only see 'up to' 1.55 bar of boost depending on atmospheric pressure at the time. Need to see a specified boost plot as it could be the ECu pulling back due to a boost spike, which could be down to something as simple as actuator preload

Can you post the full log up and not just dissected bits of info? You state you're only dropping 6-9 bar of pressure from requested, i.e. so you're maintaining over 120 bar of rail pressure....... if so this should be enough to not see anywhere near 25% fuel trim adaption. I'd be looking back to having the correct injectors fitted again.....

Full log of boost control, lambda control/request, fuel pressure, ignition timing, injection time,  etc etc.  Take a look here for help with the measuring blocks: http://www.goapr.co.uk/support/datalogging.php

[jhook661]

@Dan_FR the garage did the full conversion and mapping
Here's my full spec
Bare in mind everything is brand new and genuine
So
K04 turbo
S3 injectors
Rs4 return valve
Loba hpfp
Deatchworks lpfp
Runner flap delete
BCS 3" power valve turbo exhaust
Revo intake
Apr Intercooler
I've got logs already but can't upload them dan ?
And I'm still running the standard 140bar rail sensor and 2.5 map sensor too

[Paradox1]

1 - sorry to hear this, surely can sit well with you for getting a conversion and map and it not being right
2-  why did you take the car back if it wasn't right
3- Dangerously lean?? that was the excuse??? did you ask them what they are going to do to fix it as it wasn't dangerously lean when you brought it to them?

[Dan_FR]

Dropbox or another filesharing service and provide a link? Or PM me for my email address and I'll take a look. When I get home tonight I can graph them to put on here too for others to look at.

I didn't realise you had it all done by the dealer. I would look to contact Revo HQ and point out you've paid for a full K04 conversion and the dealer has washed their hands of it. Revo tech support would take a look at the logs for you too so worth firing them an email.

Hard one to guess at the moment without logs as the car should have ample fuel with the Loba, Injectors and the RS4 PRV. Might also be worth posting the data on the TFSI Tuning FB group as there are a lot of very knowledgeable TFSI tuners/Gurus on there