matpizarro

I replaced all 4 ignition coils with new original ones, the fuel consumption decreased significantly, and so far the check engine light has not come back on.

Today I picked up the car from the mechanic's workshop since they couldn't find anything, and a few minutes later, when I stopped at a traffic light, I noticed that the Start & Stop didn't work. After a few seconds, the check engine light started flashing, followed by a message indicating that the Start & Stop system failed. I went back to the mechanic's workshop, and we did another scan, which showed P0303, a misfire in cylinder 3. I still haven't changed the coils, and no vacuum leaks were found in the brake booster. Now they are going to try swapping the coil from cylinder 3 with the one from cylinder 2 to see if the error shifts to cylinder 2 or not. 072c1ed9-79d5-4d1d-9e10-42de61b91952.MOV

Hi! Before cleaning the intake valves, I was getting misfire in multiple cylinders. After the cleaning, it's only showing misfire in cylinder number 3. Code: P0303 I registered on this forum because it's the only one where I found cases with the same issue as mine. This problem started in February and to this day I haven't found a solution. I will keep you informed of any updates. Thank you all very much.

Hello! Same issue here. I have a 1.4 TSI 150hp Volkswagen Golf. I recently cleaned the valves, replaced the battery with the original one, changed all four spark plugs with original ones, and replaced the timing components with original parts. However, I'm still experiencing high fuel consumption, lack of power at low RPMs, and the check engine light occasionally flashes (about once a month), showing a misfire in cylinder 3. Additionally, when I release the accelerator, the RPMs go up by themselves before coming down. I went for a test drive with the mechanic with the computer connected, but it didn't show any errors, except for the occasional misfire in cylinder 3 as I mentioned earlier. We are going to check for a vacuum leak in the brake servo hose, inspect the ignition coils, and check the MAF / MAP sensors. The car has 59,000 miles.

Hello everyone! Greetings from Argentina. I registered to learn a bit more about the 1.4 Tsi engine. In Argentina, we only have the Rally2 Skoda Fabia, which is impressive. Best regards to all!