Still running rough

jarred88 · May 16, 2009, 10:23 AM

Hey guys, i have a 03 OZ with 117000 miles and a rough idle and ive tried SO much to fix it and i cant figure it out,
i have:
bought a new catalytic converter, [the second one]
new 02 sensor
checked all my intake!
and i have NO check engine light, i just put in the o2 sensor and the engine light went off, any ideas?

Ozdriver · May 16, 2009, 12:14 PM

how do the plugs look?

jarred88 · May 17, 2009, 08:26 PM

there brand new! i bought them recently.

Ozdriver · May 17, 2009, 08:43 PM

was it doing this before you replaced the plugs? what did you get for plugs?

have you checked all your vacuum lines? what do you mean by running rough? what is it doing exactly? is it just at idle does it get better or worse at different rpms?

jarred88 · May 17, 2009, 08:44 PM

ive checked them, it idles slightly rough at 700, then from 800-1100 it REALLY rough and loud, then runs out smooth,

jarred88 · May 17, 2009, 08:47 PM

it did it when i bought the car, and i went with basic plugs, single prong copper plugs

Ozdriver · May 17, 2009, 08:59 PM

did you check to make sure the plugs were properly gaped?

jarred88 · May 17, 2009, 09:02 PM

i did gap them correctly but it wouldnt hurt to check, any other ideas? ive gone through so many typical fixes

Ozdriver · May 17, 2009, 09:08 PM

did u try resetting the ECU yet? its a long shot but easy enough to try..... maybe injectors could be a bit gummed up. there are lots of reasons you could be having this problem its hard to say without being able to see/hear the issue (at least for me)

jarred88 · May 17, 2009, 09:09 PM

yeah well ive heard of cleaning injectors and stuff but i dont know how to do that kind of stuff. but i havent reset the ECU

Ozdriver · May 17, 2009, 09:20 PM

to reset your ecu disconnect your battery for a few mins reconnect and you should have reset.

I would toss can of seafoam in your gas tank next time you fill up to help clean everything out.

could be bad ignition coils? dunno just throwing ideas out there

jarred88 · May 17, 2009, 09:36 PM

i appreciate it! ill post on the results

coal · May 17, 2009, 09:52 PM

Timing belt?

Ozdriver · May 18, 2009, 02:55 PM

Quote:

Originally Posted by coal

Timing belt?

you think his timing could be off? or that his belt could have skipped a tooth? I would think that would cause a lot more problems than what he is experiencing but then again I could very well be wrong.

any updates with your issue?

jarred88 · May 18, 2009, 06:12 PM

well now im having a slight bit of trouble getting it started. narrow it down?