I have a '93 Nissan pickup. When I stop after about a minute it start to idle funny. It will dip down and then jump back up. It will do this until I push on the gas. If I push the brake and the gas it will stop for a minute then start again. If the light changes or ok to go through a stop sign then I have to push a little harder on the gas then it will go. I have put in some fuel injection cleaner but that hasn’t helped.