VW Polo 6N no power and then shuts off
 

Hello everyone. I have a problem with my Polo 6N. The first time that happened to me the car was idling and then shut off. I tried immediately to fire it up but nothing. The car was trying to start up but the engine couldn't. After 5 minutes I tried again and it fired up instantly. The first expert cleared and programmed the butterfly cause he thought that's the problem. Nothing changed. Then he told me to go to another one and he changed a temperature sensor valve or something like that. I thought it was fixed but after 4-5 days the same thing happened. It doesn't happen every time I drive. The biggest problem is that the experts that diagnosed the car didn't have the experience of shutting down. Another expert told me that it's an electrical problem. He cleared the cables that were going to fuel injectors cause he saw a problem there. But still, it didn't shut off on his hands. He also told me that it's not the fuel pump problem cause the fuel pump needs more time to cool before it starts working again. The thing that I've experienced after the idling shut down is that while I was driving I felt that there is no power. While I was in a gear there were no lights on the dashboard. When I stopped the car and the RPMs went low then the battery light turned on and I couldn't start it again for like 5 minutes. Any idea what it might be?

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That isn't an easy question to diagnose on the web.

You need to get your motor scanned (preferably with VAG-COM\VCDS) for any error codes logged in the ecu and post them, that will save a lot of guessing and check systems out.

I solved the problem. In case someone has the same problem and the car loses power and comes to a stop and turn back on after a 5-10 minutes try to check if the fuel pump is working. Turn the key to the run position and try to listen to a sound that is coming from the back seats. If you don't hear any sound then check the fuel pump relay. In my case, the fuel pump relay was under the wheel and I needed to remove the plastic cover. When you turn the key to the run position you need to hear like 2-3 clicks from the fuel pump relay. If you don't hear anything then the relay has gone bad and stops working when it gets hot but runs again when it's cool enough until it stops working for good. The fuel pump relay was my problem I hope I can help more people with this post.

You need to get your motor scanned (preferably with VAG-COM\VCDS) for any error codes logged in the ecu and post them, that will save a lot of guessing and check systems out->Speed Test