Seat Leon 1.8 intermittent dying whilst driving.

[Cauley31]

Hello all, Firstly I don't use forums often so if this is the wrong place to post I apologize.

I have an old 2002 Seat Leon 1.8 petrol that has been misfiring and dying whilst driving and it is not giving me any fault codes, It starts back up again after coming to a stop but the issue seems to happen at the same driving distance there is a certain road that every time would misfire and slowly die before coming back to life, The issue is it now is simply dying, (makes me think it could be a sensor that activates after a certain temperature or another metric is met).

It had a new battery and alternator and a full service recently before this issue came up.

I am just wondering if this is a common issue that can be fixed, or if the old girl needs scrapping as the rest of the car is pretty immaculate which would be a shame.

Happy to answer any questions you may have

 

[Battoussai]

Hello.
When you say there aren't any fault codes do you mean you have checked with a VCDS or VAGCOM software?

Regards.

 

[Alexis27]

Things like that usually come down to fuel, air and ignition.
Maybe fuel pump, maybe spark plugs, maybe coils.
You could always take it to a garage instead of the scrap man

 

[nd-photo.nl]

Check the crank position sensor, its in the front of the block. My cupra would just intermittently cut out and was hard/unable to start. A faulty sensor will cut the fuel pump without any error message (safety mechanism).

The rubber hose was my PCV vent to atmosphere hose

New vs old (and dirty)