2009 Corolla 1.8L XLE Idling issue at D/R


New Member

Recently I noticed my car would shake badly when idling, usually only in reverse or drive, not in park or neutral. After trying seafoam in the fuel tank, that did not resolve the issue. I then had the spark plugs replaced and that seemed to fix it, but the next day the issue came back. I then had the entire throttle body and mass airflow intake cleaned. Again, it temporarily seemed to have fixed the issue, but then it returned. I went to start my car and it was shaking like crazy. Finally got it to start by accelerating while turning the ignition, but rode rough driving. I had a mechanic look at it and they said the throttle body wouldn't relearn and that it needed to be replaced. i have replaced the throttle body and done a relearn procedure. It seemed to do the trick. I was driving home today and it is just as bad as when this initially started. I am stumped on what else this could be. I don't know if it's my cars computer system. Please help!