According to the '04 service manual, that one has dropped the IAC to have electronic throttle control, the throttle body took over that function.

 

Hmm, so I wonder if it's likely then, that the problem is the module that bolts to the back side of the throttle body.
The throttle bodies for sale seem to come with taht module attached, I'll have to heck and see if you can buy it separately.

Aaron

 

That module is the electronic drive and gear reduction section to the throttle blade drive. It is NOT sold separate, you buy the whole TB assembly.

What is the problem and you should get a trouble code for it.

 

That module is the electronic drive and gear reduction section to the throttle blade drive. It is NOT sold separate, you buy the whole TB assembly.

What is the problem and you should get a trouble code for it.

I had the auto parts store read the code, and it said "idle air control valve". Thus my current confusion.

My daughter just bought the car, somebody stole the catalytic converter out of it, and it's currently just got a straight pipe on it, back to the muffler. Is it possible that that could be causing a weird code to come up? Seems unlikely to me, but you don't know what you don't know, sometimes.

Aaron

 

It needs the front and rear O2 sensors working right to run best, the rear one will not be outputting right with no cat.

Code will say more than just 'idle air control valve'...........will add what it's doing wrong like over limit, or not able to control idle, or other. You are doing what so many others do and that is interpret code after somebody did thus blowing any true meaning into the water. GET THE EXACT CODE NUMBER, I used to read them for people and commonly had to force them to write the numbers down, people are bound and determined to get in the way of their own self interest. No personal insult intended of course.

NEVER let the person reading your codes interpret them for you! They make incentives based on what they tell you to commonly suggest the higher priced parts. Why reading codes is illegal in California, too many stealing from customers by selling stuff they didn't need based on their interpretation of the codes and why YOU want the exact number, look over his shoulder or bug him to get the exact number, it can be the difference in hundreds of dollars.