Skoda VRS Map not right??

[kadvr6]

I had my 2006 Skoda 2.0TFSI remapped just after xmas, and since its been remapped its starting to misfire at about 3000rpm, and it just does not feel as quick as it should do at all.

I took it to Midland vw for them to plug into the OBD port and then took it out for a spirited drive, the only fault was the MAF sensor was peaking at 160 then dropping down to 130, so i fitted a brand new MAF that i bought from the stealers, this made no difference at all.

I have also fitted a new revised diverter valve, as the one that came with the car was the original one.

So my question is, could this be the MAP that is causing these symptoms?? as the car was fine before the MAP was installed.

I'm not going to mention who did the MAP yet as i have used him before with very good success, and he is well known in the BMW scene.

thanks

Karl

[bacillus]

You really need to do some fault scanning and live logging to narrow down the problem. Plugs or coil pack are the usual suspects.
That being said, shouldn't your tuner be helping out here seeing the misfire didn't occur till the map was applied.

[56OctyVRS]

My bet is the extra strain of the power has caused a spark plug to go.

[camfollower]

Which map is it?
Can you put back to standard and test?
As said, worth hooking up to VCDS to see which bank is misfiring and swap out that plug out to test; then coil pack.

[kadvr6]

My bet is the extra strain of the power has caused a spark plug to go.

well just ordered some new standard plugs so will put them in on tuesday.

[kadvr6]

You really need to do some fault scanning and live logging to narrow down the problem. Plugs or coil pack are the usual suspects.
That being said, shouldn't your tuner be helping out here seeing the misfire didn't occur till the map was applied.

The guy who did my MAP is away till mid february, so just thinking what it could be, and i like to get my hands dirty, but when it was at Midland VW they did the live logging and the only fault was the MAF.

[PDT]

Was the map just a generic ECU flash, or was it dyno tuned or at least datalogged?

[Hedge]

According to their website they are recent Revo dealers but previous to that were Custom Clown dealers.

If they put Custom Clown software on your car no wonder it's misbehaving. 

[john a]

That's Midland VW isn't it? I think the OP is saying they didn't map his car.

I'm not going to mention who did the MAP yet as i have used him before with very good success, and he is well known in the BMW scene.

thanks

Karl

Are they well known for remapping BMWs in the Wolverhampton area?
Are you sure it's a misfire? Is it random or being logged in the same cylinder?

[kadvr6]

The MAP was not done at Midland VW, i only have high praise for Midland vw.

The MAP was just one that was loaded onto the ECU after the ECU's standard file was downloaded, and then sent via email for the MAP to be put onto my ECU.

I'm waiting for the guy who did my MAP to come back of he's hols and get it either sorted or refunded.

[kadvr6]

That's Midland VW isn't it? I think the OP is saying they didn't map his car.

I'm not going to mention who did the MAP yet as i have used him before with very good success, and he is well known in the BMW scene.

thanks

Karl

Are they well known for remapping BMWs in the Wolverhampton area?
Are you sure it's a misfire? Is it random or being logged in the same cylinder?

Its not logging anything so when i took it to Midland VW all it showed was the MAF sensor not operating 100%, with no faults at all.

Its reving to 3000rpm and then misfiring/bogging down, it wont rev for about a minute then it revs cleanly as it did before the MAP.

[camfollower]

About a minute, or briefly... perhaps the map is running lean.

[Janner_Sy]

So your map was uploaded without any datalogging, and the map was emailed to you?  Id say thats probably a key problem there in its own right.   I don't get why you dont want to say who did it, you never know someone else might have heard of them and will be able to help.

Ideally you need to log the car find out what cylinder the misfires occur on, swap the plugs and coilpacks around then try again. Then if the misfire changes cylinder as well you've narrowed it down to a spark issue, if it stays the same its probably a map issue.

What blocks are you logging?

[kadvr6]

ok it was EMAPS who did the map, Simon came round to my house plugged in he's laptop and made sure there was no issues with the car and then emailed the file over to he's business partner, who then changes the files for the ECU, it was then emailed back over and then flashed onto the ECU, not unlike most places that dont have a rolling road or a custom remap.

He did my old E46 330d a few years back and that was incredible after he did that.

I will let you all know what the outcome is, but he is a nice guy who will sort it out.

[GrayMK5GTI]

What is the advice we give on the forum? Always go to a reputable TUNER that is well thought of on the forum 

The setup you have described sounds a lot like these cheap remap places that have no understanding of how the TFSI engine works, they simply tweak a few factors in the ECU map to increase boost etc and leave it at that.

I thought this was the case as the OP was reluctant to reveal the "tuner"

@OP I think you ought to take it to a specialist (one that is on the forum) and get it looked over