I have again come across some problems with my mk I vrs:

The revs seem to be unsteady with the power delivery quite jerky and on several occasions now whilst driving at a steady speed the car be felt to suddenly be very laboured and the power can be felt to die off.

I had problems at the start of the year with my breather system where the 'y' pipe had turned to bubble gum and the pancake valve was also shot. I replaced all with new genuine parts ( pancake valve, 'y' pipe, plastic tube and the t-piece)

The way the car is running is similar and so tonight I have had a quick look. Now the turbo inlet pipe is internally lined with oil. I have a split-r fitted that is set to vent and the trumpet has black deposits along the lines of carbon/ oil.

Which pipes/ valves would people recommend checking?

Any help would be appreciated

The revs seem to be unsteady with the power delivery quite jerky and on several occasions now whilst driving at a steady speed the car be felt to suddenly be very laboured and the power can be felt to die off.

 

 

Hi, 

 

   I am a noob when it comes to cars, I bought a used Octavia 1.9 Tdi Mk1 ( used, 2004 model ) about a year ago, and been facing issues almost one after the other. 

 

   So, I could be totally wrong.  But the Fluctuating-revs, very jerky power delivery and power die off, symptoms you described sound very similar to an issue I faced recently. Its the same pattern. This was random.but esp, when on Highways and steady speed for no apparent reason.

 

   I called up the mechanic (40+ yrs exp. repaired a damaged camshaft, tappets, etc. for dead cheap ).  Over the phone itself he said "there must be dirt particles in fuel tank, whenever a particle slips into engine, it gets stuck in injectors and the engine struggles till the particle is out through it. It did not make sense to me as I had got it serviced recently at that time.  I went over to his garage, he cleaned up the fuel tank, replaced fuel filters and it never happened again.

 

  I hope its the same case with yours as it was a simple, cheap fix.  

A little update. I've had a bit of a look and it is appearing to be the crankcase breather that is responsible for the oil in the TIP. In the new year I didn't replace the pcv valve so have had a look and from looking online I've read it should rattle if working (mine doesn't) however with me blowing it is 'working' as a 1 way valve. Does this sound good or bad? Lol. It doesn't visually look to be no good but is there any other way of testing the valve?

As usual when checking online seen the horror stories of it could be turbo seals. So checked, no smoke nor any metal shavings in the throttle body.

If not the pcv valve is there anything else you would suspect as cause for oil in the TIP?

Is the pcv for the vrs the same as other 1.8t's?

Skoda is out of stock