My 4runner 22re has some egr problems. with the vacuum hose off the egr valve is connected the motor skips really bad over 1800 rpms. When i take the hose off the egr vlave it doesn't skip at all. Has anyone had this problem and if so what did you do to fix it. i am driving with the hose off right now but i am conserned about hurting the motor sinse i just put in a new one. Thanks