Misfire plus whine?
Hello all, 03 v6 with about 212,700 on the dash. Replaced spark plugs and wires along with iac valve within the last week, planning on cleaning maf and throttle body soon.
First few days the car felt amazing and had no issues, about three days ago while it was idling before i left i noticed it was misfiring again like in the video. A couple pops here and there but nothing noticeable while actually driving, wasn’t really doing that before replacing plugs and iac. I also noticed for the first time yesterday the high pitched whine coming from the passenger side of the engine bay, lower side. Went away after turning the car off and back on the first time, didn’t go away today after cycling the key; sounds like it “winds down” when i shut the car off.
I know i’ve gotta clean the maf and throttle body yet, might doing these help with this misfire or do i need to look somewhere else?
The car also still likes to stay above 1k rpm coming to a stop since changing the iac which is confusing me a bit. When it’s warm it’ll normally go to around 6-700 rpm but sometimes it likes to stick almost right at 1k.
Any input is appreciated, thank you