Hey guys got an 02 prix with 3800. 91k miles. Just put new plugs and wires in it and a pcv valve now when i sit with it idling it will almost hiccup and drop from 1000rpm to 800 then back to 1000 then hiccup and back to 800 and so on. Any ideas what could be causing this. Also what other types of preventative maintenance is required for these motors arround my mileage. Im a jeep guy and the straight 6 im used to is way different than these 3800s. Thanks in advanced for the help