Hello everyone! 
So my fabia started to put on random coolant and oil lights on also above 3.5k rpm it turns on epc and asr light and it stays on until I restart the engine..

With all those lights the car drives ok, but after 15mins of driving it it loses power and has a very rough idle..I just have to turn it off wait for a few mins and it starts going again..
Yesterday I got the following codes:

 

P0172

 

P0170

 

P0301

 

P0407

 

P0403

 

I managed to fix the problem with the cylinder 1 misfire and if I unplug my EGR valve epc and asr lights don’t come on anymore, but the car still loses power and idles roughly after 15mins of driving it..

 

Parts that are new: 

oxygen sensor

catalysator

sparkplugs

sparkplug wires 

alternator

throttle body (I thought that could fix my problem cheaply but it didn’t) 

 

So if anyone knows anything about this problems please tell me or I will go insane with it...

Please enlighten us as to which engine you have, also which oxygen sensor you changed, there are two.

3 hours ago, sepulchrave said:

Please enlighten us as to which engine you have, also which oxygen sensor you changed, there are two.

1.4 16v 75hp and I changed the one on the exhaust manifold

Sounds like you have the AUA engine, have you checked for vacuum leaks on the brake servo pipes, they often split allowing excess air into the inlet system.

1 minute ago, sepulchrave said:

Sounds like you have the AUA engine, have you checked for vacuum leaks on the brake servo pipes, they often split allowing excess air into the inlet system.

No, could it really be causing all of that?

3 minutes ago, Lipa112 said:

No, could it really be causing all of that?

 

Yes, absolutely.

2 minutes ago, sepulchrave said:

 

Yes, absolutely.

Can you tell me where is it located, can’t seem to find good pictures on the internet

13 minutes ago, Lipa112 said:

Can you tell me where is it located, can’t seem to find good pictures on the internet

 

Take off the air cleaner and you'll see a thick hard black plastic pipe running between the brake servo and the inlet plenum behind the engine, wherever this pipe has joints can be split and leaking.

1 hour ago, sepulchrave said:

 

Take off the air cleaner and you'll see a thick hard black plastic pipe running between the brake servo and the inlet plenum behind the engine, wherever this pipe has joints can be split and leaking.

Just got back from the garage the hose is like new no cracks anywhere..Do you have any other sugesttions?

1 hour ago, Lipa112 said:

Just got back from the garage the hose is like new no cracks anywhere..Do you have any other sugesttions?

 

Yes, replace the ECT sensor.