All Things Mk5 > Performance Modifications

Experience of APR Maps

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KRL:
^^^
Process of elimination is a good idea.  To rule out this being a SW issue have you considered trying talking to APR and asking them if they would be willing to give you a free Stage 2+ trial?  I think it could be worth a shot and would give confidence to whether this is a SW issue or not.

Janner_Sy:
i think that would be a great idea TBH. JKM do both APR and REVO so could flash your car back if it doesnt work

vRS Carl:
Thanks for the advice Tony :happy2:

Just a couple of things.

Firstly Keith at JKM (who is a bit of a Guru on the 2.0TFSi) has spent hours going over logs i have sent him.

He also has logs from when the car was on the Dyno.

When i first left JKM after the install the Car was set at Boost 8 Timing 7 Fuel 7. After about a month of logs going back & forth to Keith and me changing various parts, we got the Car running as he would expect a Stage 2+ K03 car on Settings Boost 9 Timing 4 Fuel 8. The logs were basically the same as 5 other Stage 2+ cars (which were all using the original version of the code). There was no timing pull whatsoever. But the car would not reproduce the road logs on the Dyno. Basically between 2000-3000 rpm the AFR rate was all over the place before settling to a flat line as it should. Keith said if we could get the car to produce on the Dyno what it does on the road i would have 'normal' stage 2+ Dyno print out

Kev Hall at REVO also looked at them and over the period of a couple of weeks got me to do various logging runs at various settings and logging specific blocks. This led to me being put on the settings i am now which is Boost 9 Timing 7 Fuel 6.

The problem is that on the Dyno the car will NEVER request maximum boost. IIRC the most it would request was 2350mbar and only very briefly. However put the car on the road it will request Max and more often than give more than the requested boost (requests 2550mbar and often gives 2560-2580mbar)

Over a period of 3 months the car was logged in numerous ways. Both before and after every piece of hardware was changed. It also went back on the RR twice hoping the problem had been fixed. It hadn't

The car doesn't do it's weird stuff at any particular time and i tried to replicate it numerous times but it wont. The actual road logs show the car is running fine max timing pull is -3 on a single cylinder and not for very long (read a couple of hundred RPM)

The fuel trims are fine etc. Nothing from the logs would indicate a problem. Which as you say without a specific fault code it's going to be hard to diagnose. This i why i replaced everything that could possibly be replaced in an attempt to locate the problem. Starting with the cheapest to the most expensive.

Maybe my last post was a bit misleading as more often than not the car performs as i would expect. It's not as dramatic as i had been told but i can get comparable in gear times as other Stage 2+ cars.

I would be more inclined to believe it was a hardware problem if it was just my car. But three cars with the same problem at the same point in the rev range is in my opinion too much of a coincidence.

As i said in an Earlier post i am not slagging REVO off. I think they have a very good product. BUT it is not Flawless as they seem to think and (apart from Kev Hall) my experience of there customer service is very very poor. If this turns out to be a hardware problem then i will publicly apologise to REVO.

Carl :happy2:

vRS Carl:

--- Quote from: KRL on February 15, 2010, 11:26:38 am ---have you considered trying talking to APR and asking them if they would be willing to give you a free Stage 2+ trial?  I think it could be worth a shot and would give confidence to whether this is a SW issue or not.

--- End quote ---

I have done mate but kinda of forgotten about it as i wanted to get the problem sorted. More so just because it would always always bug me.

But as i am getting to the end of my tether with it now i think i may just try that.

Carl :happy2:

tony_danza:
Yeah, by the sounds of it because there's a link between the cars you have common problem.

My thoughts are your cars all have a common piece of hardware that is either wrong from the factory or is a slight variation on the norm, so it is performing differently for whatever reason. Code that works fine on car A and doesn't on car B only does so because there is something different between the two.

So it either needs routing out and replacing if it is the wrong part, or the code needs tweaking to factor for it being different. Fair enough from my point of view if they didn't know a different part existed or was wrong, how could they tell? - but you can't excuse refusal to accept that possibility or poor relations with your customers. I hope whoever you work with from now on improves on that.

Your problem is obviously finding that bit. I still can't help leaning towards that fuel pressure sensor, I've heard of a few cases now of wrong ones. Mine had a VW recall, a few others have found them by chance with no word from VAG - so they clearly haven't a clue which batches were problematic. After that, I'm out of ideas but will ask some people I know to see if they've seen anything like it? I do know a master tech too, so its possible I can get a VW insight.

If it helps, a symptom of mine with the incorrect sensor was on kickdown/dropping gears - it'd get confused at the request for so much power, freeze for a few seconds and then dump a load of power in a scatty way. I thought it was the DSG doing it, it just so happened to go away when they did the recall swap, so can only conclude it was that.

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