Logan23

So I own a 2001 Acura cl type s and about a week ago I switched my spark plugs and a month before replaced my coil packs thinking that my car would stop throwing misfire codes which it didn't there has been a really bad stutter while driving or at idol (sounds like misfire but isn't ) I am going to try to replace the map sensor hopefully that is what is wrong but if anyone could give me some pointers also I have to take it to get emissions done today wish me luck

Ron A

Welcome to the forums.

Thread moved to model specific forum.

whitetiger5

Hi Logan, welcome! The engine requires 3 things to run: air, fuel and a (well timed) spark.

Are you getting misfire codes? if so, do you know if the misfire is random or a specific cylinder? if specific cylinder, you may want to reinspect the plug / coil for that cylinder. I doubt this to be the case though.

If no misfire codes and random: I'd check the EGR passages they are often overlooked and tend to get clogged creating issues.

Ivan2020

Is there a part number for that gasket around the EGR ports? I've got a very rough idle issue that started all of a sudden and the car hasn't set any codes, which seems off since you'd think idling that rough and stalling would generate something.

Ivan2020

BTW, mine is a 2002 CL-S w/103k miles.

Ivan2020

Update: things just went from bad to worse. Went to pull it into the garage a few minutes ago and now all it will do is idle very roughly around 400RPM. No response from the gas pedal. I was barely able to limp it into the garage. Still no codes. Might be more than some clogged EGR ports....

justnspace

iTrader: (1)

well, pull things apart and inspect!!!
pull EGR valve to inspect carbon buildup!
could also be a bad IACV

Ivan2020

Will do! Pics coming. Maybe I misunderstood the IAC valve function. I thought the main symptom of that failing would be surging at idle.

Ivan2020

Devinity dirty. Not as bad as i was expecting

Ivan2020

Ivan2020

Well, its clean now... But the problem was still there after putting it back together.

Ivan2020

Ivan2020

I was able to pump the accelerator enough to get it above 1500-2000 rpm where it seemed to run happily. But when I Let off the gas it dropped down to around 500 and then stalled. Is there a test for the IAC?

Ivan2020

Update: I didn't have the time to pull the IAC valve so I just had it towed to the shop that did the water pump and timing belt a couple months ago. Turns out the timing belt had skipped a couple of teeth. I'm assuming someone didn't tighten something to spec when they put on the new belt. After lots of apologies and a re-do of the timing belt job, the car is running fine now. At least it didn't do any other damage and they stood by their work. Could have been a lot worse.