D.FYLAKTOS

Technical training video describing the immobiliser system on the Skoda Felicia.

Technical training video describing the immobiliser system on the Skoda Felicia.

Another video with slight different function. Looks god huh?

Now the other side, on the bare metal and on the heat shield.

Not good quality photo due to the sun reflection. On the bare metal and on the heat shield.

Be careful with that 3 pin plug, in mine was wrong and of course the scales were opposite. Double check the fan speed I and II before you take the car for test out in the road.

I have found that Bosch produces such fans 250/150W 280mm but with 2 codes. 0130 107 262: Not for cold climates 0130 109 237: for cold climates (a little bit higher price) The weird is that the local Skoda dealers and the spare part stores sell the 0130109237 model although here in Greece we have high temperatures. https://www.briskoda.net/forums/topic/485671-bosch-radiator-fan-for-felicia-help-wanted/

The line up included the old 1.3 litre overhead valve (OHV) Škoda petrol engines, now with Bosch Mono Motronic single point fuel injection (up until 1997), and Siemens Multi-point fuel injection, with two rated power outputs of 40 kW (54 PS; 54 bhp) and 50 kW (68 PS; 67 bhp). There were also two engines sourced from Volkswagen Group: a 55 kW (75 PS; 74 bhp) 1.6 litre petrol engine with Magneti Marelli multi point fuel injection, and a 47 kW (64 PS; 63 bhp) 1.9 D diesel engine.

6U0959455A with this code they sell radiator fan motor with 6 and with 4 blades too !

@theNFS25 as you already have seen @Thefeliciahacker has work on this matter, you can also ask for help from a fellow country man the @Papez is Czechian too. I have the same model and i have changed the radiator fan, also keep in mind that there are 2 radiators fans motors for warm and cold climates, radiators for vehicle with a/c or no.

If it's for one time then no worries.

The temperature is normal, no overheating? Such as? Rough idle for example?

Here are 2 available: https://rrr.lt/en/cars-list/skoda/felicia-i-1994-1998/fuel-mixture-system/carburettor-mono-injection/carburettor

That was my first thought.

OK then. When i find time i will put a heat shield on that tube and ''Case Closed". 🙁

In 8:32 of the video.

Yes but except heat-shielding the rail tube what else can we do about it?

In Cold start at winter the heat insulation of the tube won't make things a bit worse? It will take more time to get heated so in short distances things will be worst than without heat shield, am i right? I have brought from grille a second tube inside the air filter box and i have worked inside of it. I am happy with the results.

Thank you. I thought that with less (engine bay) temperature on the fuel rail the gasoline will be injected one click better and especially in a journey at summer this will affect positive the performance. By the way, article this https://www.sciencedirect.com/science/article/pii/S2214157X22005056 is ''too much'' for me. On the other hand this https://www.quora.com/Do-car-engine-temperatures-affect-how-the-fuel-injectors-work Do car engine temperatures affect how the fuel injectors work? Yes, car engine temperatures can significantly affect how fuel injectors work. Here are several ways in which engine temperature impacts fuel injector performance: -Fuel Atomization: Fuel injectors spray fuel into the combustion chamber, and the temperature of the engine can influence how well the fuel atomizes. At optimal temperatures, fuel atomization is efficient, leading to better combustion. If the engine is too cold, the fuel may not atomize properly, resulting in incomplete combustion and increased emissions. -Fuel Viscosity: The temperature of the fuel itself can change its viscosity. Colder temperatures can make the fuel thicker, which can affect how easily it flows through the injectors. Thicker fuel can lead to poor injector performance and uneven fuel delivery. -Injector Calibration: Fuel injectors are often calibrated based on specific temperature ranges. If the engine operates outside of these ranges, it can affect the injector's spray pattern, duration, and overall performance. This can lead to issues like stalling, rough idling, or poor acceleration. -Engine Control Unit (ECU) Adjustments: Modern engines are equipped with ECUs that monitor various parameters, including engine temperature. The ECU adjusts the fuel injection timing and quantity based on the engine's temperature to optimize performance and efficiency. If the engine is running too hot or too cold, the ECU may not be able to adjust the fuel delivery effectively. -Heat Soak: After the engine is turned off, residual heat can cause fuel in the injectors and lines to vaporize, leading to a condition called "heat soak." This can cause difficulties in starting the engine after it has been turned off for a short period. In summary, maintaining optimal engine temperatures is crucial for ensuring that fuel injectors operate efficiently and effectively, promoting better engine performance, fuel efficiency, and reduced emissions.

As the temperature rise the volume of the fuel does not rise a bit? In a hot summer day the temperature of the engine bay will rise more so that will affect the flow of the fuel inside the tube or not?

To be honest never measured this, seeing the brake performance and the clicks of the hand brake to get (much) higher in number i was ready for change. I don't think must be a lower limit to alarm you, all are in the road performance and not in the caliper.

I used a wrong word, i ment it's better for the fuel to be in higher temperature entering the combustion chamber or not? By insulating that tube the inside temperature will be one click lower, that's good for the fuel flow or does not matter at all?

This is a photo of the (injection) fuel rail of Skoda Felicia. https://www.ekodiely.sk/photos/1/1012695/rijroe49tm.jpg Since the years as a student have passed long time ago, i wonder: what is the effect of engine bay's temperature on fuel flow? The gasoline in low or higher temperatures flows or evaporates faster? Here in Greece we don't have heavy winters but we have quite hot summers, what effect does the rising temperature have on the fuel flow? There is a pressure regulator, yes, but if with insulation we lower the temperature a little bit in this cylindrical tube, does this have anything to do with the easy flow of fuel to the injectors? There would be a (even the tiniest) benefit by heat insulating that tube from A to B? or i must leave it as is because that tube must let cool normally?

As ΓΑΠ said: '"there is money" (λεφτα υπαρχουν).

In Czechia an owner was asking for his Felicia with only 14.144 Km on the odometer the amount of 1.000.000 CzK or 41.000 eur back in 2022. https://autogreeknews.gr/nea/polla-diafora/diafora-nea/giati-ayti-i-skoda-felicia-poleitai-41-000-eyro