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adjusted the idle screw.. got the idle rock solid at 650 out of gear.. 725 +/- in gear.

The throttle body fixed the idle problem.. It settled right down to 750 immediately after putting it on.. Even without adjusting anything.. but I still plan on adjusting the TPS, idle speed and ignition timing before I get it smogged. For now, the idle is smooth as butter.

Same risk of ruining the lines during install? and how much for what you have? i dont need harness i think it's just hoses, condenser, compressor gone..

As the title says I need the complete A/C system for a 92 GS. The PO deleted mine because racecar. Well I don't plan on tracking the car and live in vegas. I'd rather spend money on parts instead of money on Icees and Slurpies every summer drive. Let me know what you have and price shipped to 89146.

I got the throttle body a couple of days ago and the intake gasket set yesterday. Day off is tomorrow so I'll be swapping everything over and setting the idle according to the info given here. Also change the oil and The OPS. About a month from now I have about 12 days vacation so I plan on doing up...

Sounds like the complete throttle body and tb gasket will take care of this.. I'll let you all know.. You'll still need to set your TPS and Idle. Anyway, if your not interested that's fine just understand that all the rebuilding in the world won't help if the TPS is out of adjustment. Good luck. Tr...

In the old days we all knew what the cause of these issues,,,,Mr EGR :evil: He is evil and upsets even the most finely tuned MX-3. Anyway double check for vacuum leaks then set the TPS, if you haven't done that then that should be step one. setting the TPS should take about 20mins to 1/2 and hour. ...

I plugged the iac in with the car running and it starts surging.. unhook it and it stops but only with that ac button on. weird.. I'm not low on coolant so I think the iac is bad..

The codes it threw were isc 34 and tps 12.. to be expected as I unhooked the tps during troubleshooting and the iac was unhooked when i bought the car.. the iac did not throw a light though.. the tps did.. new update: When I unplug the iac and push my AC button the idle stops surging and settles aro...

A guy from here is going to send me a complete throttle body so I'll update this thread if it resolves my issues. Also while my throttle body is off I plan on replacing as many of the vac lines as I can get to and thoroughly examining the intake tube for splits or cracks.

Did replacing the IAC resolve the issue? I have a similar issue.

I just got a 92 mx-3 GS. Not to familiar with the K8s but here goes: After the car reaches operating temp the car constantly revs between 900 RPM and about 1400 RPM back and forth. When I bought the car, upon further inspection what appears to be the IAC was unplugged. I plugged it back in and there...