ruivalente

Not sure about that, as you mentioned, with sensor disconnected, the problem occurred again but later. again, not sure if it is mechanic. once you change the radiators please let us know!

I changed both radiators AC condenser and Charge Air Cooler radiator. Yes, the electric pumps. You can check another thing that in may case was vital to understand that it was not turbos or other stuff. If you can replicate the scenario, for example go to the highway, on an hill try to accelerate and register the time that the car reduces the fuel. Then, remove the plug from sensor 2 (after charge air cooler), computer will say that the temperature is -40º. Get back on road, and in the same spot, check if there is any difference. If the car has power, the problem should be on the radiator or sensors (giving the fat that you already changed a lot of things). There is another test that you can do. With the car cold, in the morning for example, connect ODB and check the sensors temperature before turning on the car. Temperatures should be the same as environmental temperatures. Check if there is any temperature that is out of normal.

The symptoms are the the same that I had. My Charge Air Cooler was cleaned with ultrasonic as well, but without difference. If you have someone that can check, ask to check or clean the radiator (if it is like mine, you should have 3 radiators in the car, from front to back, AC condenser, Charge Air Cooler radiator, Main Water radiator). Mine was changed (it's not expensive). Also, check if you have the Silica bag in your water reservoir. Again, mine had, we suspect that the crystals spread throughout the system because I only had the heater matrix clogged. You will never get an error code in your system. Check the pump as well, it might be clogged or so.

Hi Adan, Yes, problem solved. The car has all the power that I need, event with this 40º outside, highway with heavy load, everything works great. Please validate with OBD all the sensor data before do anything. Understand the behavior of the car. Use this forum to think out loud and always start with the smallest things. Thanks

Hi all, Hope this is the final update on this journey! Yesterday I received the car from the shop. The AC lost some refrigerator gas and I suspected that was the condenser. It was with a lot of dents from stones, and even wholes, 11 years of intense highways here in Portugal Hi ask the shop to replace the condenser and check the charge air cooler radiator. They checked and propose to change as well the charge air cooler radiator because it was with a lot of small stones as well and because the front of the car was already out, it was the best time to do it. Apparently, problem solved!!!! Now, on high loads, charge air cooler temperature sensor 1 (before charge air cooler) can reach temperatures like 110-120ºC but sensor 2 (after charge air cooler) remains at 44 to 46ºC. On low boost, it keeps between 40º to 42º and we can see on the chart (android app) the pump turning on and off with the temperature dropping and rising. Hope this helps other to solve their problems as well. This issue was never solved by any shop since 2019.... After many €€€€ spend on other sensors and valves and cleaning, it was this community and my searching and interest that solved the problem! Thanks to all!

Hi, Doesn't have the silica bag anymore. Last year my heater matrix was clogged and I change the heater matrix and the expansion tank no a new one without the silica bag.

hi @dejanrs! No, unfortunately I still have the issue, and now we are in summer time so it's even worse. My next step will be changing the charge air cooler radiator and AC condenser to increase airflow into the charge air cooler radiator. I'm having oil temperatures higher than normal (115 to 120ºC when it was normal 105 to 110ºC). On the cooler reservoir (wish is new) I found some debris. There is something wrong with my coolant system, for sure, but no one seams to find the problem...

Hi SuperbTWM. Charge air cooler was removed and cleaned. On of my current doubts is related with the charge air cooler radiator it self and in fact the AC condenser looks like it was in a stone war, but is enough to block so much air? I don't have problems with the main radiator and coolant temperature. Nevertheless, it is an easy fix to try to get more air flow into the radiators cleaning the condenser. Regarding temperatures, I get more "problems" when temperatures are higher than around 20ºC, but even with 4-5ºC I have problems, but less of course... Speed limit in Portugal is 120km/h (around 75mph). Yes, you are right, but I cannot pass in some cases 100km/h when going uphill on highways. 😞 The speeds that you saw there was to monitor/record sensor values Thanks!

it is more noticeable during hot weather yes. But even in the winter I can notice that bu it takes longer to reach those temperatures. I have some cases that the car won't let me go more than 100km/h where before I can easily go mutch more.

Hi Everyone, My name is Rui Valente and currently we have two skodas in the house and five in the family Here we have a Fabia from 2001 (1.4 16v) and a Skoda Octavia III from 2013 (2.0TDI 150cv). Pleased to be part of the community!

Hi all, I don't think that I have a problem on any sensor but i'm experience since 2019 a issue that no dealership in Portugal can identify or find and that is related with Charge Air Temperature. The issue is that when on hard load, highway uphills for example, my charge air cooler temperature is registering around 120º on sensor 1 (before charge air cooler) and in some cases more that 90ºC on sensor 2 (after charge air cooler). The effect is that the ECU cuts out diesel and I have a limitation of power until the sensor 2 gets back to bellow 90ºC and then the power is fully restored. They already replace the charge air cooler pump, a non return valve on the exit of water pipe at the charge air cooler and even cleaned the charge air cooler, but the problem remains until today. No fault code is stored in the ECU. Do anyone experience this or have a clue on how can I fix this problem? Here is a sample of the temperature sensors: Thanks!