Autofanatic Posted October 30, 2006 Share Posted October 30, 2006 ok, here goes. for a while now, i have noticed my 98 ls400 running rough, particularly on cold mornings. it felt like the car was running on 7 cylinders. it used to always go away once the car warmed up, but now sometimes it doesnt. i was told to start with a tuneup and here is what i did. changed air filter, spark plugs, fuel filter, pcv i also cleaned the throttle body. now, not only has my problem NOT been solved..but i am idling all over the place... started cold, the engine may idle at 1300 rpm!!!! any suggestions for both problems??? Quote Link to comment Share on other sites More sharing options...
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.