hi ppl i'm new to skoda but ive had nothing but trouble since ive had it ive changed the precat lambda sensor and temp sensor but now the eml light came on last week and saying lean bank 1 i know there a threads on here but im getting really stressed out im only getting approx 15 mpg at the moment its had a remapp by the previous owner ive tried looking for a split pipe but i think im stressing to much to think properly is there a smoke test i can buy and how do i do it there is a hissing noise coming from the front of the engine does that mean anything please help many thanks to all who replys

Get a cheap can of carb cleaner from a pound shop.

Remove both engine covers

And with the engine running spray the carb cleaner on any pipe you see, mostly paying attention to the ones under the inlet manifold. If the engine starts running differently while spraying the cleaner you have an idea where the split pipe is

thanks for that i will try this morning after i finish work thanks again

Hissing noise is a dead give away that you have a split pipe somewhere.

Check all the small pipes around the inlet manifold & pay particular attention to the S pipe under the inlet mainfold as it's a prime candidate for splitting.

hi guys just to update there was a split pipe going into the inlet then going down to the lower right hand side of the engine if you can help with a part no or picture also i found that the dip stick funnel was split in half at the bottom

thanks both for helping speak to soon

If it's the one going into the underside of the manifold from the T pipe to the right of the dipstick it's the S pipe. I have a spare in my garage so will have a look for the part no in the morning.