[sbshady]

i have a 90 cavalier, 2.2 4 cylinder automatic. when i got to work this morning and on the drive here, it idled weird. it was like i was pumping the gas, only i wasnt. a few times i thought it was going to die. im going to look at it tonight when i get home, but i was curious to see if anyone knows what it is before i go hacking at it. i appreciate all the help you can give me

 

[ponykiller]

start by checking all of the vacume hoses including the one for the brake booster

 

[sbshady]

i think i found the problem there is a little square box that looks like there is a fuse inside it. it is all by itself near the corner of the engine bay. the thing is clicking and while it clicks the engine idles high. what the hell is the thing? is it a relay? what is it called! help me out please!

 

[krazybaddude]

If its a square box, and its clicking, and it has 4 or 5 wires coming out of it, then yes, it is a relay. But there shouldnt be a relay clicking on and off when the idle gets high....... Your idle problem may be a bad IAC motor, causing it to idle up and down. Try and pull your codes, and see what u get.