Alright so.

couple days ago, cleaned the throttle body, no luck, same thing the next morning. got paid today. so i bought plugs and wires, and also got MAF cleaner. did both, and still a rough idle.

what am i missing? once it warms up, it goes away.

 

Is this have an idle air control sensor? Cold has the rpms at idle high for it to heat up?

 

confused at what you just said, ill check to see if it has an IAC. not sure about your second part.

when its cold in the morning, rough idle... once it heats up it idles like nothing is wrong.

 

Does it have a tach?

 

yes, it has a tach. its a 2001 chevy...

 

What is the idle rpm when "warm"?

 

between 500 and 1000. normal. no jumps.

when its cold its the same idle but it dips down like its going to turn off.

ive already explained this in the original post. i need to know what im over looking.

next thing ill do it clean the IAC. i doubt its the fuel filter. once warm the bad idle stops.

 

The IAC is the sensor that tells the pcm to idle higher at cold temp for warm up. That is what I am thinking, however I am not a tech on these, and there are those that post that know alot more than me. Is there anything abnormal after it is warm?

 

nope, once its warm, its fine.

so are you saying the IAC is faulty?

 

What I am saying I think it has an idle air control sensor that allows the idle higher when cold. If that is the case, would be my suggestion as the issue.