when i press the throttle i get a misfire it idles fine i have changed the plugs and put new boots on and the only code is a random misfire code and a month ago i had a knock sensor code but i deleted that and nothing has come back.
if any on has has this problem or knows what it is please reply
its a 2000 sunfire 2.4
Thanks
and the cel blinks when i stay in the misfire for a while then goes back out
Awaitinganswer to this as well - I'm having exact same problem. I changed out sparks and wires and someone mentioned coil packs or fuel pump but i havent got to that yet.
my 2.2 does that but only sometimes. does it do it to yours all the time? i'm probebly changing my coil packs in a day or 2 i have other used ones i'm going to try. ill tell u guyz if it helps btw mine only does it when i step on it hard normally.
4 door civic on the way
i need a daily driver
fuel filter?
plugs gapped properly? All boots secure etc?
i think i might just switch my motor this weekend i got a newer one. and i'm bored
4 door civic on the way
i need a daily driver
try the map sensor
spark tables measure RPM and MAP
problem fixed i changed coils and its as good as new
sweet i guess i'll be changing mine 2 morrow
4 door civic on the way
i need a daily driver
this happened to me twice already, seems like the coil packs go frequently.
Random misfire sounds like the ICM (ignition control module). Misfire in certain cylinders means the coils. Fuel is not out of the picutre though!
now DIE!
I have the same problem...I've changed coil packs, had ICM tested is perfect, changed wires and plugs and still same problem.
What else could it be? If it's the map sensor would all 4 cylinders not fire? I'm only have problems from cylinders 1 and 4
have you tried changing your base they go onto.. If i remember right the coil packs plug into it.
4 door civic on the way
i need a daily driver
A Few months ago i changed that big plastic thing that plugs into the boots and waalaa everything was fine, you should try replacing that like propa said. Mine was arcing sparks the to the idi cover and misfiring during acceleration. Also mine had black lines on it from the spark jumping, that may help if you are inspecting it but you may not always see them.
the coil pack housing cover is a known problem on the 2.4L. you can get them from most parts stores. DO NOT GET A USED ONE.
jeremy
parts manager
Aperntly the coil pack housing going out is common (the big white thing). Mine went out so bad that I dropped the #1 cylinder over an hour from home (at the exact time I got to where I was going) I had to drive all they way home @ 70mph (interstate) on 3 cylinders with the CEL blinking at me the whole way. The car did pretty well once it was up to speed but didn't accelerate worth a crap.
I took it to a shop and they said that its my ECM
