stupid idle

[thumpyls]

i have a 90 ls integ. and the cars rpm is jumping from 1k to 2k all the time.. when i start the car it idles at 3.5k.. i changed all the vac. lines and the tps,map,eacv...i do not know what to do..i am lost.. thinking about a motor swap to solve the problem but it might do the same with another motor..if anyone can help email at plkouijhy@hotmail.com..

 

[Bl6CRX]

check the tech article: fixing a irractic idle, it has seemingly every possibility...

 

[daidilus]

did you check your coolant? drain it, refill, bleed