Hi guys, i think this is in the wrong area but for some reason i couldnt get into the techniqual bit?

now and again if i put my foot down it climbs to 3000 RPM, then drops slightley and then goes back up, its most annoying! once the car has really warmed up it seems to stop.

Iv had it re-mapped (not on a rolling road) and have a PD160 on, could it be something to do with that as i didnt seem to get this problem before i had the mods?

Also having trouble with the PD160. If im in a low gear at revs around 2000 and i put my foot down i get a wierd juddering sound like im drining over cats eyes. It only started happening once i fit the PD160.

its still under warrenty but i cant go to them because of the re-map and the air intake.

Any theorys would be great.

cheers guys

Worth checking air filter is clean and PD160 is clear of debris. Out of interest, who did the map?

Chris

a guy called jason, he can to my house and did it his companys called ecutune, nice guy, only cost 200bucks

i think it could be a problem with the remap , there maybe a glitch in the coding that cuts fuel or boost at that rpm , i would get in touch with the company that did the remap to see if they can re-do it , this may improve/fix the problem

as for you juddering , this could be the DMF vibrating due to excessive torque from the remap , try to allow higher engine revs before booting it

Hi guys, i think this is in the wrong area but for some reason i couldnt get into the techniqual bit?

i think you need to have Freedom membership to access the "ask a tech" forum

cheers mate for all your help, il get on to the re-map guy

hi ric04vrs, i got onto the re-map guy and he said this;

'Only thing I know that does this is the CLUTCH. Sounds like it is slipping a bit.

If clutch is struggling then you will only see it in the higher gears. Clutch in these is usually good for the power, I have this software out in other fabia vrs and they do not report clutch problems. Software is 100% good.

Fix is uprated clutch if problem persists.'

is he right? il be hacked right off if it is and i gotta uprate my clutch! mo money mo money!:(

is ur vrs re-mapped? do u have an uprated clutch?

can anyone reccomend a sufficient clutch and what sorta prices they will be?

MBF - clutch slip will occur in every gear once it starts, and most people haven't had issues.

It sounds to me more like an issue with a generic map.

That what i said to him and he emailed me back saying

'The clutch is only slightly struggling so it does not let go completely so yes you still accelerate but not as quickly and revs climb quicker than actual acceleration, so when clutch gets a proper grip again you see revs drop to match actual speed and then they climb again.

When a clutch is completely Knackered and worn out it can hardly grip at all so yes you go nowhere and revs will rise in all gears.'

And to be fair, when its happening, it feels the same as if i just put the clutch in slightley.

I dont no, cars!

I read a thread about a guy who got his vrs re-mapped and he got 196bhp out of it and the only other thing he had done was a green cotton filter and a pd160 so i was wondering if my BHP and Torque was also very high from the re-map and its to much power for the clutch to handle?

I do find it strange though as it doesnt have a really hard life, its only 2yrs old and has only done 22,000 miles or so. Do u think my re-map guy is talking sh*te?

I've not heard of anyone else having problems, and a 170ish bhp remap on a Fabia vRS isn't uncommon.

I do find it strange though as it doesnt have a really hard life, its only 2yrs old and has only done 22,000 miles or so. Do u think my re-map guy is talking sh*te?

AFAIK, the standard clutch is fine for the sort of power your remap gives you. I'm no expert, but the symptoms you describe don't sound like the clutch, as they're occurring AFTER peak torque. You'd be able to tell whether it is the clutch by seeing if the speed follows the revs - if the speed dips (or at least doesnt rise) with the dip in the revs, then I'd go with the thought that the remap's at fault, as a slippy clutch should do the opposite. I'm also a little wary of the claim that "Software is 100% good." - it's not unknown for a remap to take three or four goes on a rolling road before it's good right the way across the rev range, so a mobile remap without the benefit of an RR could well have the odd flat spot...

NB: Please don't drive for miles and miles looking at the dials and not the road - perhaps you should take someone with you to look at the dials while you do the driving!

TBH if the map was only

I thought it was

it was

This really sounds like fuelling to me. Once the clutch starts slipping, why would it start to grip again without you reducing the power demand?

As for proving the point, frankly the only things I can think of involve VAG-COM or a proper rolling road session to read his map.

My Bad i thought i read 20 bucks.

Either way I'd be asking for my money back on the same line, I would guess the map puts a massive torque spike somewhere in the 2500-3000rpm band, which means it is too much for the clutch.

If that is the case it is a bad map IMHO.

:iagree:

Sounds like a bad remap, if the revs are rising like you say to 3k then the torque at that point is to high for the clutch. At 3K the torque must have reduced again in the map for the clutch to grab again. In this situation, the point of release and grab will get much worse very quickly as the clutch burns out. So either a) your clutch was starting to go before the map, and the map has made things worse, or the remap is not very good.

I dont like generic maps either, as no two enginges are the same.

On the general point of generic maps, I figure that you can either go conservative everywhere, or you can go aggressive and risk some engines having a torque spike, over-rich flat spot, over-lean flat spot (nastier, cos too lean could mean burning valves) or pinking or detonation issues (most issues other than torque spike and over-lean flat being petrol only I know).

What i forgot to mention in my first post was that at 2250-2500 revs it shoots up to 3000revs, then drops back down slightly and then climbs slightly, cant understand why its only happening an high gears.

Do you feel a drop in power at the time of the revs 'shooting up' ?

That's the clutch letting go, and unless you've really abused it in 2 years then it's either a faulty clutch or the remap is way too torquey for it.

I had a Revo'd Fabia vRS (180bhp) for 2 years/40k miles on the remap, and did have the clutch let go once near the end, but that was me, nailing the gas in 4th up a slight hill at 2krpm. I felt the engine 'surge' and power drop, then it came back in again... as the clutch gripped.

I don't usually do that, so it never happened again. Feed the gas... a bit more slowly!

See if he can either take the map off (for a 'restocking fee' maybe?) or can he redo it a lot smoother and gentler.

I've gotta say the Revo map I had was superb, so don't discout generic maps entirely, I did pay quite a bit more for it though.

Oh, the judder is not the clutch, I called it 'torque judder' and it only started after my remap. It's caused by pushing too much gas in too quickly at low revs, mine was worst if I went too hard at 1800 - 2000, then it goes away. Again, feed slowly until 2.5k revs, then push harder.

I think it's drive shafts or the flywheel vibrating under the massive torque that hits at those low revs.

HTH, Andy.

Its alot to take in, but thanks!

when the revs shoot up, theres no drop in power but no massive increase either(which the revs indicate)

Its strange tho coz it only happens if i floor it in 4th or 5th, if i put my foor almost to the floor its ok. I could live with it if i had to but i dont really want to! do guys mind if i send him an email with some of your comments in it?

Heres the latest email iv had from him, thought id keep u guys posted.

'Hi John,

This map is good its out in many like yours without problem.

When did you notice the clutch start to slip ?

I will talk to Programmers to get their opinion as they are the experts and know the map.'

Welcome to send an e-mail with pretty much any of my comments in it.

Forther to this:-

1) Does his map try to retain "normal" economy for cruising, with a big lump of power when you actually hit full throttle?

2) Does it take a feed from the road speed sensor? That would make sense with your description, if fuelling is restricted in the lower gears, when the tyres and clutch would normally be less likely to handle it.

Iv pretty much given up now, i got this email from him just now:(

'Hi john,

Software is within torque limits for stanard clutch. Software cannot be tweeked it is designed for your exact car. Make a file with less power and customer complains that car not fast enough and problem with car is not fixed. Clutches often behave like this if they are getting worn and they get killed by bad driving by owner or even previous owner commonly by leaving foot on clutch pedal. Don't take offence I'm not saying you are a bad driver just explaining what can happen to clutch. Your options are 1. Put back standard and leave that way 2. Replace clutch 3.live with it.

I spoke to another of my customers the other day who has exact same car and all good.'

I thinks its gunna have to be new clutch at some point, any recommendations anyone?

Dont want to spend a fortune as iv got nothing to spend!

Found a company on ebay selling the whole clutch kit for

Quick thought, my cars still under warrenty, would that cover my clutch? would they find the re-map? dont want to get stung with an unexpected bill from them saying my warrents void!