Erratic idle and 4k rpm governor
Long time no see ep hatch. Anyways I'm looking for some advice as to where to start to fix my ep. I have been having problems here an there and since cylinder 2 pushed a spark plug out about a year ago she hasn't been the same. So most recently I ha to do new plug and coil pack and when I got back in my car I have a crazy dropping idle from about 2500 to low and also sometimes a slightly lumpy but steady 2300. Also driving it I'm getting a cut off in every gear at about 4k. I believe my codes are for cat and o2 sensor but ill double check for the codes today. Any leads would help. I'm going to clean the iacv but I have a feeling it's not that easy.
My ep has about 120,xxx no serious mods, comptech header and air box. Pretty babies since bout it with 40k on it 5 years ago.
Thanks!