is there a solution to this problem

I changed the ECU but to no avail

I replaced the throttle valve, but to no avail

there are no errors in the ECU

the problem occurs only when the engine is cold, and on the go

Have you checked the dog-bone mounting?

the gearbox pads have been replaced, no change

when it heats up there is no problem

the head of the electronic pump was replaced, but the problem remained

Try disconnecting the fuel temperature sensor, if it's reading high then the engine will be running too lean when cold.

 

when you turn off the air temperature sensor, the car is fine, but a check lights up

in all forums there is this problem but there is no solution

2 hours ago, ivelin said:

 

when you turn off the air temperature sensor, the car is fine, but a check lights up

 

Which air temperature sensor, MAF or MAP?

sdi has an air temperature sensor on the air filter cover, no MAP and MAF

SDI no turbo no MAP and MAF

45 minutes ago, ivelin said:

SDI no turbo no MAP and MAF

 

It has an ECU, it must have a MAP or a MAF, I know it has no turbo but that doesn't mean anything for the electronics.

27 minutes ago, sepulchrave said:

 

It has an ECU, it must have a MAP or a MAF, I know it has no turbo but that doesn't mean anything for the electronics.

Definitely no MAP/MAF according to the wiring diagrams 

very simple engine with a big problem, there is no solution in any forum

I put a new EGR no change

 

anyone have an idea what to check

could the problem be in the dashboard

ECU from where it takes speed and temperature data

does anyone have wiring diagrams for the 1.9 sdi

Download Fabia CFD MY 2003-2004 from here for the equivalent engine wiring in Fabia1 (search ASY within doc, or go to pdf page 111)

MK1 Fabia workshop manuals - SKODA Fabia - BRISKODA