I know there is a screw somewhere, but where? I wanna bring up idle from 500-550 to 600-650.

 

the screw is right behind throttle body on intake manifold... that is from what i remember... becarefull dont fool around with it too much

 

Use the shop manual procedure to make the adjustment. Just messing with the screw will leave you disappointed! You will not get the desired results!

 

thanks. i was just about to buy the Haynes manual. BTW i was messing with some black (i think plastic) philips screw, located around the TB. is that it? i didn't feel any changes and just returned it to its original.

 

Why?

 

yep...that's it.
FLO_BOY

 

1. make sure the engine is at normal operating temp
2. with car off, disconnect TPS
3. start car and rev a few times. Let the car idle.
4. adjust IACV black plastic screw to fine tune rpms. Alternatively, if rpms are way off, use the throttle plate screw first and then the IACV black screw.
5. Turn car off and reconnect TPS

 

because the car vibrates alittle when it hits 500 or so.

 

yea my car does that too. annoying as hell

 

i figure if i raise idle to 600-650, it's not gonna vibrate that much, and that's the normal idle anyways i think.

 

Mine does the same thing when I clutch in sometimes. Hell. Sometimes they'll drop as low as 300 RPM. I think the car's about to die.... Never does though. My car idles fine though when not in gear.

David

 

where is the TPS? i even looked in haynes manual and it's not there.

 

Ok I just checked the Haynes manual,and the screw isnot on the throtle body.It is behind it next to a a vacum hose on the intake plenum.

 

it's not on TB, it's behind it

 

My car was doing the same thing a few days ago, idling at 500 rpm or so in gear, but since I cleaned the TB its been idling at 750 rpm. You might want to try cleaning your TB.

 

turn the screw clockwise to raise rpm?