2000rpm at idle. Stumped

[diablodude64]

Alright so I have gone through everything and cleaned it new gaskets on the intake manifold, cleaned aac, regulater and a few other things. My idle is at 2000rpm's sometimes it goes down to about 1200 rpm's but that is still high. It used to be at about 550-600rpms. Also when I turn in the little screw on the aac it will go down a little but then the throttle respose sucks. There are no vacumm leaks. Could the ignition timing have anything to do with it? Any suggestions?? I have a 1989 with ka24e. Any help will be greatly appreciated.

[h.240]

Did you disconnect the TPS sensor before turning the screw?

[Vegascorbin]

Yes timing can have an effect. Check the FSM and set the AAC and timing the proper way and then see whaat you have.

Let us know how that goes.

[diablodude64]

alright I still need to check the timing but I am almost 99% sure that it is the MAF. Because it was running perfect then all of a sudden like crap. I popped the hood and while it was running jiggled the wires and the rpms change dramatically. Any thoughts??

[Vegascorbin]

Which wires?

[diablodude64]

The wires on the maf.

[ncp2g]

I have had similiar problems with my car, and found it to be the timing and the throttle positioning sensor

[phsycodrift]

there's is a small screw in the front right of your intake manifold. it is connected to your throttle. loosen the nut and turn it 1 or 2 turns counter clockwise and than tighten the nut. and your idle should be good.