2003 Vrs wagon, stock other than regular vacuum + SAI deletes 

 

I recently got rid of my sai pump as the rivets had all but gone and the whole lot was a little ropey. Standard delete with blank plate etc. 

 

I got by with no CEL for a good few weeks but tonight it finally appeared, P0411 incorrect flow. As I understand it, I have 2 options which are to go and get a remap/ get the code written out or, get VCDS and do it myself. 

 

I don't know a great deal about the mapping/ DIY modifying area myself, so it seems a little risky to get stuck into that straight away even though I think I could manage it. That coupled with the cost of the official gear as I don't like the idea of using the dirt cheap ebay cables/ software on my car. 

 

If I were to get the car remapped professionally, how much improvement in power/ response would I be able to reasonably expect as it'd no doubt be worth doing that at the same time as getting the error removed (I assume)? 

 

If I'm misunderstanding any of this, please let me know. I don't want enormous power out of the car, but if a professional remap can get rid of the code permanently AND make the car a little more fun then why not. 

Vcds will only clear the code, but in time, it will return again - more frequently as the colder weather takes hold.

 

A standard generic remap will not code out the light, that comes under what is called a custom remap.

 

Best thing is to select your tuner, then ask for a price. R Tech in Hinkley may be close to you, as most of the others are a bit of a trek to get a good one.

 

I would only consider a mobile mapper if you can check out his work / get user opinions beforehand, as some of the mobile people's maps have not played well in the toyroom.

 

Hope it helps.

Edited 16 August, 20205 yr by kentphil1

Thanks, that's the info I was hoping for so much appreciated.