Hello guys. I just bought a beautiful like new condition Fabia Vrs 2006 with some small issues. The car doesn’t have the power it is supposed to have, feels more like a 100hp Fabia, check engine light is on, and sometimes yellow oil symbol will come and go too. I noticed some buzzing come from the vacuum box on one occasion  while the car was running, so I am wondering if that could be the issue? If yes, can I replace it with any other TDI vacuum central, or must it be the one for the BLT engine? 
The other question I have is regarding the remap. Is 1749vb turbo a plug and play fitment on a BLT as well? If yes, is Melett a good option? Is this SMIC that I got any good for 180hp, if it’s even better than the stock one? 
Ty for the replies!

Edited 29 October, 20214 yr by iwcham1979

Did a little bit of research, so apparently the 1749VB would fit... You are welcome to share your thoughts on the intercooler and the vacuum box :)

 

Edited 29 October, 20214 yr by iwcham1979

I think you should fix the car before fitting upgraded bits, that SMIC is a like for like swap so I'm unclear why you're bothering.

You'll have fault codes stored so that's the best place to start.

1 hour ago, iwcham1979 said:

must it be the one for the BLT engine?

I'd stick with one from the same engine, or one with exactly the same part number including suffixes.  BLT version has fewer valves inside than the ASZ I seem to remember, probably to do with the electric as opposed to vacuum operated anti-shudder valve/TB. Check for wiring damage near the connector before spending on anything though.

 

3 hours ago, iwcham1979 said:

check engine light is on

So you have at least one logged engine fault. Find out what that is before throwing money at the car.

Thank ypu guys. The only fault that came up is EGR related. 

So money wasted on that SMIC 😅

Found what’s causing the loss of power and Check Engine light to come on. It’s not the vacuum box, but the clip that connects to it that is broken causing one side to be loose. I have fastened it somehow… Do you know how I can find the part number and order the part from the dealer. Ty guys.

Photo?

So, the box is definitely toast. Again threw the EGR code, sometimes buzzing and there is a weird aghhhh sound when I switch off the car. So guys, justto confirm, am I looking at either of the two numbers here for the BLT engine, either C or G?

 

What do you mean "the box is toast", it's just a box containing some solenoids, you mean one of the solenoids is toast?

 

Check for vacuum leaks first.

Yes, does it matter whether it’s a C or Gat the end of the part number. I guess not. O found a used one with G for 50 euros?

Suffix G part superseded the suffix C part in Oct 2008, so either should be fine.

Sounds pricey though for used.

Ye, I know, the guy is a jerk. I’ll probably buy a new one. The new one is about 200euros, but at least I will ne sure it will not fail. Ty for the info.

Edited 1 November, 20214 yr by iwcham1979