Hey there just upgraded my 1996 jetta trek for an 2001 VR6 GLS...loving V dub after taking this car out, i have noticed a couple problems but i expected them for getting the car for the price i did, The check engine light is on so i brought it to a buddy who has a computer, does anybody know what P0139 AND P0134 mean? also the engine has a click to it when I give it gas, its almost like a knock but its coming from the top, when it idles you can hardly notice it. I t drives smooth lots of power but I am worried its the first time with a VR6, any advice would be much appreciated!!!!! thanks fellow VDUBBERS!!!!