Been just over a week since i bought a vrs with pd130 hybrid turbo, egr ASV delete, decat, fmic and claimed 200bhp.For past 2 days have been getting a lot of black smoke when accelerating and been low on power. I've been thinking its the boost pipes as one was rubbing on drive shaft but this doesnt seem to be the issue.

 

Thread here http://www.briskoda.net/forums/topic/367139-recently-bought-fabia-vrs-but-now-getting-plumes-of-black-smoke/

 

What makes me think its the ECU is the fact that when i bought it the TC (traction control) light was permanently on and couldn't be turned off from the button (meaning TC is off permanently) previous owner said he had got the TC mapped out as it caused the wheels to spin up, wasnt really bothered about that. The thing is that 2 days back when I started to get black smoke and lost power the TC light turned off!! And I could turn it on and off by press of the button, where as before this would make no difference

I took it to a mechanic earlier today to get it checked out. He stuck a diagnostic screen to it and said no faults, then revved it and once on limiter black smoke again. He commented it could be something wrong with EGR, I told him EGR was deleted and he said it would more than likeyl be software/ECU related as they have to delete EGR from ecu when it is removed and could be part of remap.  When i told him about TC light he said there was a strong chance the remap could have gone wrong!!!

 

Here's the weirdest part. I got into my car after speaking to mechanic and started it and made my way home, being careful to stay off boost.I then realised that the TC light was on, so I tried to turn it off by pressing the button. It wouldnt turn off!!  I then slowly went up to boost speed and sure enough power was back. It still smoked a bit but the power was back.  Got home, turned it off and on again and this time TC was off and I could turn it on and off by the button! MEnaing remap gone again!!  Its got me totally confused as I never thought remaps could come and go like this.

 

Remap was done by BMconversions. I called then but the guy was busy and said would call back but I didnt get a call.

 

Any thoughts on this please?

You can't make a remap disapear on the EDC15P (unless you write over it)  however, you can change the codebanks.

 

The ECU has two banks (two maps) which you change with VCDS. It requires a software change, never heard of it doing it itself.

 

Also never heard of live switchable maps for the ECU15P yet...

Ye, its completely baffled me.  The TC light was what made me suspicious first time round but i thought maybe a coincidence. But now it came back and with it the power etc but then TC light disappeared again and took the damn power with it and left me black smoke!.  

 

Could there be something wrong with the map?  

 

Or a short somewhere in wiring of ECU?

 

Where is he ECU on these? There's a box that looks like ECU on passenger side in engine bay??

That is the ECU, silver box in the top right of the engine bay behind the air filter and above the ABS pump.

 

It's a strange one, I would keep calling the Tuner and try and get an answer.

Common fault of TC light appearing is the wrong map code loaded onto your ECU, as someone used a vrs map from an ASZ engine on a BLT, lazy mappers using maps of other vehicles!

Common fault of TC light appearing is the wrong map code loaded onto your ECU, as someone used a vrs map from an ASZ engine on a BLT, lazy mappers using maps of other vehicles!

 

Never thought of this /\

Wasn't the Tc light also related to a broken wire to the gearbox or something? Think I've read about that before

Wasn't the Tc light also related to a broken wire to the gearbox or something? Think I've read about that before

 

Load Signal Cable shouldn't effect the running, that would also illuminate the ABS warning light too.

Ah fair enough. Wasn't sure if the op had 2 separate issues, but appearing at the same time

Thanks for feedback guys.

If bmconversions have used map from a different engine then maybe its not worth going back to them.  Besides I;ve been advised to not drive it and if I have to then do it off boost for short distances.  They are in Southampton which is a fair few miles form me.

 

Can anyone recommend a good mapper, even better if they are mobile.

 

Failing that Clive from CN Tuning in Wokingham is back from hols coming Sunday so may have to wait for him to return. He's familiar with the car as well as previous owner had work done by him.

 

With mapping these cars can the mapper map them without knowing what turbo etc is in it? Or do they have to know the exact spec of turbo so map it effectively?

Its just occurred to me that if bmconversions have used map from different code engine then wouldnt this problem have occurred before or is it just coincidence and they can happen at any time?