You dont adjust the Idle disconnect the battery for 10 mins and reconnect and the computer should relearn it idle .
It is nonadjustable. It is controlled by the computer.
how do you adjust the idle on a 2002 toyota van
you can adjust it via the idle control valve.
smash it into the wall
You cannot adjust the idle in a 1998 Cadillac Catera. It is computer controlled. If the idle is not at 750 rpms then there is another problem with the engine. Check for codes with an OBD2 tester.
there is an Allen screw and a nut on the throttle cable you loosen the nut and the screw and adjust it to make it idle up or down.
Honda Accord 1998-2002 model GEN 6 idle speed is control by internal computer. You need to bring it to the dealer to adjust this.
According to the Haynes manual, it is not adjustable.
Check idle speed rpm & adjust higher if lower than it should be. Mixture if it isn't.
The idle adjust screw is on the throttle body. The side of the throttle body that faces the front of the car should have a dime size flathead screw towards the upper edge.
fix the vacuum leak
You can't. Toyota Camry uses throttle position sensor to adjust idle. If your car does not idle you need to check computer for error codes. If you do not have any, most likely you will have to do tune up on your engine and maybe even fuel system. But starters check the air filter and replace if you did not do that in a while or if it looks dirty.