My names Michael, I OWN A 1998 mcv20r TOYOTA Camry (3.0L V6). I have an issue where by the car will be driving and as soon as I descend down a hill, it will start to ***** around, feels like its trying to fuel cut (I know its not though, just feels like it), then when I pull up at the lights it feels like its trying to stall. I have been informed it could be O2 sensors, Cracked on-board computer board, MAF sensor as well as various other things. I have found that if it does it, I pop the bonnet and tap the EGR Valve with a screw driver it will stop it and run normally, yet I have replaced the EGR valve 4 times. Anyone experienced the same problem or know what it might be? Any help would be greatly appreciated