1. I just serviced my '03 fabia 1.4. To be specific i changed plugs, engine oil, fuel filter, oil filter and air filter. I cant figure out why there is still no change or improvement in it's performance.

2. On the same car, i realized there is a missing pipe that am sure is connected with the air intake or output. Its located below the main pipe that comes from the air box. Then goes back to the air box but on its lower side. Someone knows its use. I'll try upload a pic later.

Try posting this into the Fabia mk1 section, much better 'coverage' there.

Or a Moderator may move it for you

Jrjg