[Shaunee]

Whilst the ECU does constantly learn, I'm of the understanding that if you clear codes via VCDS it will also erase all adaptions.

 

If the car was on a different map which restricted power output alluding to the point made by FPF, and as Monopole has stated Audi have said the ECU code is up to date, I very much doubt this is the cause tbh.

 

A query remains, which I think is a very important area, in that saying an engine is unhealthy purely down to a dyno run (which it didn't appear to be unhealthy stock on SRR) isn't very objective imo.  There is enough data available by using VCDS to at least give an indication of where a problem may be.  This is assuming you understand the platform and have baseline data/knowledge to compare against.

 

I'm sure you'll get to the bottom of it Monopole.

[monopole]

Hopefully you'll be of some assistance on Saturday, but no worries at all Shaun if we don't manage to get any logging or stuff done, I can wait until it's in for the full check up 👍

[Shaunee]

It's fairly straight forward to look at the basic elements like potential boost problems / leak, fuelling issue, ignition targets, ignition retard and airflow. 

 

If the engine is taking the ignition it should, isn't retarding anymore than expected, fuelling is OK and boost is being achieved prior and post intercooler..... the basics would allude to no issue in these areas.  Of course there are many other things that would need to be looked at, but those would be my initial "off the cuff" areas of interest if I were logging.

 

You've already alluded you've done a VCDS scan with no errors as well.

 

Like I said, I'm sure you'll get to the bottom of this one way or another.

[Louilongcat2015]

Hopefully you'll be of some assistance on Saturday, but no worries at all Shaun if we don't manage to get any logging or stuff done, I can wait until it's in for the full check up 👍

Out of interest who is doing your health check and how much is it setting you back!? I may need one my self

Lewis

[T-800]

Monopole
I've been speaking to Alex and he says clearing faults doesn't erase any other 'other' data.

Edited by T-800, 13 September 2016 - 01:03 PM.

[monopole]

Seems to align with what Audi said on Fri, they checked the ecu history with nothing of consequence showing, bar SS voltage and exhaust valve warnings.. but without actual logged data from the engine performance / efficiency / health etc etc then there is no movement on progress, hence I've booked independent full logging and diagnostics. About an hour on the dyno logged by all accounts.

[T-800]

Seems to align with what Audi said on Fri, they checked the ecu history with nothing of consequence showing, bar SS voltage and exhaust valve warnings.. but without actual logged data from the engine performance / efficiency / health etc etc then there is no movement on progress, hence I've booked independent full logging and diagnostics. About an hour on the dyno logged by all accounts.

The question is mono.....

If the health check doesn't reveal anything untoward, are you happy with the way the RS performs on the road ? In real world situations ?

[Shaunee]

T-800,
I read a reply on a forum by one of the VCDS support staff that clearing faults effectively did an ecu reset of any adaptions / learnt data. Is that not correct then? If not apologies for repeating.

[T-800]

T-800,
I read a reply on a forum by one of the VCDS support staff that clearing faults effectively did an ecu reset of any adaptions / learnt data. Is that not correct then? If not apologies for repeating.

According to Alex at Vagcarcoding no it doesn't........
But then again who knows for sure ? Can any of us say 100% ?

I cannot imagine VCDS resetting data of that nature, learnt or otherwise..... By simply clearing fault codes logged.

I'd imagine a fairly more involved procedure similar in nature to a DSG gearbox reset procedure, which we know requires a little more than simply clearing codes.....

Edited by T-800, 13 September 2016 - 02:01 PM.

[monopole]

The question is mono.....

If the health check doesn't reveal anything untoward, are you happy with the way the RS performs on the road ? In real world situations ?

Yeah Sean, I've already stated in an earlier post, my car feels more than adequate with no signs of any underlying problems @ stock, but it also feels better with the MTM box on.

I just want to know, for a fact, what my stock HP is (404 or 368?) and why the MTM isn't behaving as expected (be it +7hp above stock (QST dyno), or -13hp below stock (SRR dyno)) and why Kim insists there is a problem because I'm massively under powered by all accounts. If the health check proves either way my engine is good or problematic, then I think Kim and I can progress from there, until then clearly nothing is going to happen.

Saturday will be key in finding out the general performance of my stock engine, it is in no way definitive I know that, but a good indicator I think.

Edited by monopole, 13 September 2016 - 03:27 PM.

[Uncle Fester]

I don't do this mapping /tuning box or any other fancy name for supposedly increasing the cars performance but if i did id want a before and after rolling road dyno so id could compare the difference.How an earth can you tell if the performance has increased if you don't know what it was in the first place,exactly the same thing happened with the APR map for the 8p where people went away after having the map done and then found that the car was making no where near the quoted figures ,theres plenty of posts on the forum about this.

[Shaunee]

According to Alex at Vagcarcoding no it doesn't........
But then again who knows for sure ? Can any of us say 100% ?

I cannot imagine VCDS resetting data of that nature, learnt or otherwise..... By simply clearing fault codes logged.

I'd imagine a fairly more involved procedure similar in nature to a DSG gearbox reset procedure, which we know requires a little more than simply clearing codes.....

 

For info this was posted by "Bruce @ Ross-Tech.com" (back in 2012 on the vwaudiforum) in relation to a user asking "how to reset the ecu":

 

"With VCDS, you clear fault codes and many learned values will be reset such as fuel trims. For some parameters, you may be required to perform basic settings and adaptations. You really should refer to a repair manual where the procedures will be described. VCDS can perform the same functions as dealer tool."

 

I've never looked tbh or needed to reset my ecu. 

 

Perhaps I've misinterpreted what was stated, and admittedly I did assume the source / information was correct.  Again, apologies if I've misconstrued what I read.

[T-800]

For info this was posted by "Bruce @ Ross-Tech.com" (back in 2012 on the vwaudiforum) in relation to a user asking "how to reset the ecu":

"With VCDS, you clear fault codes and many learned values will be reset such as fuel trims. For some parameters, you may be required to perform basic settings and adaptations. You really should refer to a repair manual where the procedures will be described. VCDS can perform the same functions as dealer tool."

I've never looked tbh or needed to reset my ecu.

Perhaps I've misinterpreted what was stated, and admittedly I did assume the source / information was correct. Again, apologies if I've misconstrued what I read.

So clearing which fault codes reset which adaptations exactly ?

Does for instance clearing a throttle position sensor fault just reset that particular learned adaptation if indeed it has one ?

If there are no fault codes how do you reset anything to do with learned adaptations in the ECU ?

[Uncle Fester]

For info this was posted by "Bruce @ Ross-Tech.com" (back in 2012 on the vwaudiforum) in relation to a user asking "how to reset the ecu":

 

"With VCDS, you clear fault codes and many learned values will be reset such as fuel trims. For some parameters, you may be required to perform basic settings and adaptations. You really should refer to a repair manual where the procedures will be described. VCDS can perform the same functions as dealer tool."

 

I've never looked tbh or needed to reset my ecu. 

 

Perhaps I've misinterpreted what was stated, and admittedly I did assume the source / information was correct.  Again, apologies if I've misconstrued what I read.

 

As you say that was in 2012 ,we are now in late 2016 and technology moves faster than the car

[T-800]

As you say that was in 2012 ,we are now in late 2016 and technology moves faster than the car

Exactly Ben....

Alex was telling me only yesterday that VCDS is having updates at more regular intervals because of all the new models coming out.....

he'd seen it struggle to communicate with Q7/A4's because the releases seem 'buggy'

Edited by T-800, 13 September 2016 - 05:34 PM.

[Shaunee]

Just looked at VCDS and if you go into each control module, "clear codes" exist (not greyed out).

It suggests (when you click on the clear codes button) this relates to DTCs only though.

If it doesn't do nothing but clear any DTC's, then it clearly isn't what we're looking to do here. I wonder though if this was what Ross-tech were referring to. Who knows. lol

[monopole]

All I have to say is I hate the person who blocked the A34 coming from the M3 and the person that jammed a lorry under the bridge in the middle Romsey today causing grid-lock and stand still. And there's me thinking giving myself 1hr 40 to do 40miles would be plenty. Maybe next time 😞

Hey ho.

[monopole]

Oh, wrong thread. #shakes head!

[Roy]

Is anyone bringing their gadget to 3fest that changes this and that , what can be changed on me S7 for instance ?

 

Or does it just find faults and clear them ??

[T-800]

Is anyone bringing their gadget to 3fest that changes this and that , what can be changed on me S7 for instance ?

 

Or does it just find faults and clear them ??

PM sent so it doesn't fill up this thread......