[jeffs92svx]

I started the car the other day when it was real cold out and the check engine light came on and then after a minute it started idleing up and down again so i shot the gas to it and the light went off then came on again after a few times of reving and the light going off and coming back on i finally reved it and it finally it stayed off and has ran fine every since. Do you guys think that maybe it has some gunk in the vacuum lines or the bypass soleniod?