Rough idle 1000 to 1500 RPM's

[STRRAYNGE]

Ok, ive changed the plugs, wires, bought one coil pack, but still, at 1000-1500 rpm's it has a vibration? I mainly notice it when its cold, and as the rpm's start to drop as its warming, when it hits that rpm range it really rough. And after its warm, and I start to take off and hit that rpm range, rough, rough. I dont understand? Yes, I only bought the one coil pack, but I swapped it around on all 3, and didnt notice much of a difference, if any? Went ahead and bought a new set of plugs tonight, NGK dual electrode, and tried that, but still does it? What could this be? Has anyone had this issue? It idles perfect at around 650-700 rpm's. Injector's? Im stumped???? Please help!!

 

[A.Wilson013]

Where is the vibration? The motor I assume... Can you feel it in the steering wheel? Any audible noises? Is if sputtering like it is not getting fuel? Any CELs?

 

[STRRAYNGE]

Where is the vibration? The motor I assume... Can you feel it in the steering wheel? Any audible noises? Is if sputtering like it is not getting fuel? Any CELs?

Yes, its coming from the engine. And yes, at those RPM's, I feel it in the steering wheel pretty good. No abnormal sounds at all, and no sputtering. Runs great, just has that rough vibration at those RPM's. Not sure on any CEL's, havent had a chance to check. A buddy of mine owns a mechanic shop here in town. I have to take some tools back to him that I borrowed last night, so ill see if he can hook it up and check it.

 

[STRRAYNGE]

Checked the codes, none. Im leaning towards an injector I guess? Everything else has been done. Just gets me that its only at those RPM's. Mainly right at 1200. Any other suggestions on this?

 

[STRRAYNGE]

Need advice please!

Ok, I ran codes again the other day, still showing no codes. Started it, and ran codes while running. Still showing nothing. Revved it up to about 1000 rpms, and it finally showed a cylinder 2 misfire? What could this be? Please help me here guys. I know someone has some sort of input.

 

[STRRAYNGE]

Bump

 

[kjharper27]

did you ever figure this issue out? Mine is doing the same thing

 

[ridefast]

Mine did that when I bought it and this fixed the issues. When i took the old valve out it was stuck closed. yikes!!!

Amazon.com: Genuine Toyota 12204-62010 PCV Valve Sub-Assembly: Automotive

http://www.amazon.com/Beck-Arnley-039-6428-Valve-Grommet/dp/B000CRVFYQ/ref=pd_bxgy_263_text_y