**ok looked up the part i cleaned and it was the throttle position sensor....so where is the iac located on these cars??

 

Here is a link that will help you locate the IAC:

http://www.justanswer.com/uploads/FI...8_78127854.gif


You may need to remove the air induction tube to see the IAC. Listed in the diagram as #1 "intake air control valve".

 

hmm i didnt see it there,thats about where the tps sensor was,ill take another look over the weekend

 

ok some progress... Tested the fuel pressure today(still not able to locate the iac motor on this car). Here are the readings..
Key on car off- 37-38psi
car on-32-33 psi
car on, fuel regulator line off-43psi( regulator is working)
car on,giving gas- if i hold throttl it immediatly goes to about 34psi than drops down to about 32psi or so.
Key off- holds pressure... so does this all seem ok????

 

correction---- after turning the car off it DOES drop about a psi every min so it is not holding pressure once key is off. Also when car is on and i put it in gear it goes up to about 34 psi and when i put in nuetral or park it goes back to 32 psi.

 

did you check the distributor cap and rotor ? maybe there is a vacuum leak !

 

there is no cap and rotor on this car, sprayed carb cleaner to check for vacuum and didnt find anything

 

the belt is not suppose to jump around ! if it is then it can cause a miss because of the slop in the belt !

 

I understand the belt shouldnt slap around but wouldnt that cause a problem more than just at idle in gear? I would think it would run funny in park at idle or diving it in gear but doesnt.

 

Those fuel pressure readings are within spec. Key Off, the pressure will drop, and then should hold at about 25 psi. There is a check valve on the fuel pump that could be leaking. However, I don't think this would cause a rough idle in gear.

The IAC motor looks like this:

http://images.wrenchead.com/smartpag...S/217-1776.jpg

Does that 2.0 liter engine have Varriable Cam Timing, VCT? If it does there will be a connector, front of engine, about the middle of the valve covers, possibly with a rubber boot over it.

Here is a pic of VCT solenoid location:

http://t1.gstatic.com/images?q=tbn:A...h3J_o1ptjIJIyH

If it does, disconnect that connector, and see how will the engine idles in gear.

Also, have you ever disconnected the MAF sensor, and see how will the engine idles.