I just bought a '94 accord lx coupe for $1400, car runs well and most everything in it works (power windows, ac, etc.) Last night when i put the car in park it began to jump from 1000 to about 2200 rpm continuously. I cut the engine and didnt think much of it, and this morning it idled fine at 1000rpm.

Bottom line is, should this worry me? if so any idea what it might be / might be causing this?

Thanks
-N

 

welcome to the forum. Clean out our egr check to see that the vaccum pressure is correct.