The battery hold a few days its new.
But on my sterio i have a volt meter but this is not correct but this show
13.0V and 12,9 so i think the car not produce enough power.
I should recharge the batteri and test it. But i was curious if the knock sensor is broken or is it just the power. I have not have anny problems whit it in the winter when i have take it in and out the paint shop.
Is it some way to chek it or is it just to bye new one.
I must order from us here in Norway they shoul charge 336$ for just one.
I have find rebuild parts for the alt here
https://www.partswebsite.com/subarug...n=4&type=parts