Please help, another CEL rough idle problem
02-01-2012, 06:56 PM
#1
Registered User
Thread Starter
Join Date: Dec 2006
Location: Orlando
Posts: 80
Likes: 0
Received 0 Likes
on
0 Posts
Please help, another CEL rough idle problem
ILUVTEC
Today, 06:49 PM
I have an 05 with 122k miles. All original, no mods except K&N filter. Check engine light came on a couple weeks back. And it started to simply run a bit rough at idle for the previous few weeks. Since I had never replaced plugs, I went ahead and did this. I reset the CPU and it seemed to run a bit better for a day or so, but then it started to run rough again and finally the check engine light came and has stayed on. Took it to Autozone/discount and had them check the codes. I got two codes: Misfire on all cylinders and then I got secondary O2 sensor code.
The cars runs decent. Pulls fine, but perhaps a little sluggish, vtec still engages. I've read the posts in the under the hood forum about misfires and things to check. Tried the map whack, etc. But still no idea. Havent checked the ignitors or fuel injectors but it doesn't run so rough that I think that is the problem. Would adjusting the valve really help?
A local Honda tech friend of mine thinks it is highly unlikely to be the ignitors or injectors as they have never had them in stock and replaced them on an S2k at his dealership ever. He also doesn't think it's the O2 sensor too for what it's worth.
If anyone is knowledgeable and can help me run through all the possibilities then that woul be great.
Lmk, thanks, Clay.
Today, 06:49 PM
I have an 05 with 122k miles. All original, no mods except K&N filter. Check engine light came on a couple weeks back. And it started to simply run a bit rough at idle for the previous few weeks. Since I had never replaced plugs, I went ahead and did this. I reset the CPU and it seemed to run a bit better for a day or so, but then it started to run rough again and finally the check engine light came and has stayed on. Took it to Autozone/discount and had them check the codes. I got two codes: Misfire on all cylinders and then I got secondary O2 sensor code.
The cars runs decent. Pulls fine, but perhaps a little sluggish, vtec still engages. I've read the posts in the under the hood forum about misfires and things to check. Tried the map whack, etc. But still no idea. Havent checked the ignitors or fuel injectors but it doesn't run so rough that I think that is the problem. Would adjusting the valve really help?
A local Honda tech friend of mine thinks it is highly unlikely to be the ignitors or injectors as they have never had them in stock and replaced them on an S2k at his dealership ever. He also doesn't think it's the O2 sensor too for what it's worth.
If anyone is knowledgeable and can help me run through all the possibilities then that woul be great.
Lmk, thanks, Clay.
Thread
Thread Starter
Forum
Replies
Last Post
v10killer
S2000 Under The Hood
13
04-12-2019 04:57 PM