Hello all,
So I had a couple of codes pop up a month or so ago. Misfire on cylinder 5, a couple of O2 sensors and a failure to reach idle code. I replaced spark plugs, O2 sensors, and things were good for a bit. Haven't thrown a code since. But I am having this weird revv problem. It runs fine for a couple of days then for one or two drive it will revv up to 3k then drop back to idle. It just does it over and over very methodically. It tries to do it regardless of if I'm in gear or not. Sometimes it holds at 3k and sometimes it just hangs at 2k but most of the time it just goes to 3k then drops repeatedly. I cleaned out the IAC with a can of throttle body cleaner the way it was prescribed in a video. Seemed thorough. It was okay for a week then went back to it. Still no codes. And I tried looking for a vacuum leak but no luck. I don't know if I should pursue the vacuum leak more or if I need to replace IAC or something else. Any help on what to look into would be greatly appreciated. I have looked at many threads but just can't seem to find a similar enough problem and I'm short on time with how busy life has been.
So I had a couple of codes pop up a month or so ago. Misfire on cylinder 5, a couple of O2 sensors and a failure to reach idle code. I replaced spark plugs, O2 sensors, and things were good for a bit. Haven't thrown a code since. But I am having this weird revv problem. It runs fine for a couple of days then for one or two drive it will revv up to 3k then drop back to idle. It just does it over and over very methodically. It tries to do it regardless of if I'm in gear or not. Sometimes it holds at 3k and sometimes it just hangs at 2k but most of the time it just goes to 3k then drops repeatedly. I cleaned out the IAC with a can of throttle body cleaner the way it was prescribed in a video. Seemed thorough. It was okay for a week then went back to it. Still no codes. And I tried looking for a vacuum leak but no luck. I don't know if I should pursue the vacuum leak more or if I need to replace IAC or something else. Any help on what to look into would be greatly appreciated. I have looked at many threads but just can't seem to find a similar enough problem and I'm short on time with how busy life has been.
