Sifu Sifu, Gosu Gosu, need some help from you all. I'm asking on behalf of a friend of mine. He's owns a Sentra N16 and recently just transplant SR20 Neo VVL into his N16 and add on a blue e-manage onto it and was tuned by KSR. The problem is, his car is like totally powerless even when VVL engage. Btw, the gearbox is 6 speed triptronic. Sometimes, it does mati engine while the gear is actually at D and the engine also vibrate quite badly even after warm up. Could you guys tell me roughly what is the problem? Million of thx in advance ! 
