Hi All,
My Cupra 290 (2018) has just started making a strange engine sound, and i'm wondering if anyone can help diagnose it.
Recent changes to the car which could be a factor:
This sound did not occur in the first c.200 miles following these mods, but then just appeared out of nowhere. It didnt build up gradually, just appeared.
This has occured on two different days now - between the first (a few days ago) and second drive (today), I checked under the engine bay for anything obviously loose, and also all of my fluid levels - nothing of concern to note.
On the second drive, I used the torque pro phone app to log my temps, air fuel ratios, boost - and any other paramaters I thought might be relevant. Nothing of concern to note here even when the sound was happening.
Additionally, I have found one engine fault code when scanning with Carista (15048) - I can't find any details for this online. There are no warning lights on the dashboard.
The sound usually occurs at high load and high RPM, but sometimes it doesnt (i'd say it does about 80% of the time). It also sometimes occurs at lower RPM, particularly if accelerating hard in lower gears (less than 25% of the time).
Rather than try to describe the sound, I've linked two dash cam clips - the soundaktor is off so that won't interfere. The mic is on the camera itself, windows were up (the sound is actually much harder to pick out with the windows down). You should be able to pick it up as the tone just switches instantly to one that is more coarse.
The only other thing I have seen the car do which may be linked is let a cloud of smoke out of the exhaust after letting off after accelerating hard. This has only happened twice to my knowledge, and interestingly, not after a pull where this sound occured. Here is a clip anyway in case it is relevant:
Any thoughts?
My Cupra 290 (2018) has just started making a strange engine sound, and i'm wondering if anyone can help diagnose it.
Recent changes to the car which could be a factor:
- Full turbo back valved exhaust with 100 cell cat.
- New spark plugs
- Stage 2 engine and DSG remap
This sound did not occur in the first c.200 miles following these mods, but then just appeared out of nowhere. It didnt build up gradually, just appeared.
This has occured on two different days now - between the first (a few days ago) and second drive (today), I checked under the engine bay for anything obviously loose, and also all of my fluid levels - nothing of concern to note.
On the second drive, I used the torque pro phone app to log my temps, air fuel ratios, boost - and any other paramaters I thought might be relevant. Nothing of concern to note here even when the sound was happening.
Additionally, I have found one engine fault code when scanning with Carista (15048) - I can't find any details for this online. There are no warning lights on the dashboard.
The sound usually occurs at high load and high RPM, but sometimes it doesnt (i'd say it does about 80% of the time). It also sometimes occurs at lower RPM, particularly if accelerating hard in lower gears (less than 25% of the time).
Rather than try to describe the sound, I've linked two dash cam clips - the soundaktor is off so that won't interfere. The mic is on the camera itself, windows were up (the sound is actually much harder to pick out with the windows down). You should be able to pick it up as the tone just switches instantly to one that is more coarse.
The only other thing I have seen the car do which may be linked is let a cloud of smoke out of the exhaust after letting off after accelerating hard. This has only happened twice to my knowledge, and interestingly, not after a pull where this sound occured. Here is a clip anyway in case it is relevant:
Any thoughts?
