Reposted with more accurate title.

Hey all... just replaced the spark plugs on my civic (99 LX D16Y7) and now when I start her up I get a 2000 RPM idle. Then if I drive it for a while and I park or stop at a light, the idle goes back down to what it should (around 500).
My question is: Where is the adjusting screw located on my engine? I bought the haynes manual but it shows where the screw is only on the integra engine, not on my civic.

Any help appreciated. Thanks.

Michel

 

It's on the throttle body. It's capped with a black rubber plug.

 

isnt your car supposed to do that when you start it up? once its warmed up, then itll idle normal?

 

Yeah i would expect the RPMs to jump high when i first start it, but then I'd also expect them to settle. Before i changed the plugs the rpms would go back down to normal, but now if i let it sit right after starting they still dont go down.

Thanks though