89 DX idling problem

[Ryoni777]

Hi, to all members. I am new here, I have an 89 DX that runs fine when you accelerate, but the idle jumps from 1,000 to 500 and back, when at a stop or idling. It seems like it wants to stall, but most of the time doesn't. The idle is skaky as well. Could it be a vacuum leak or low idle. If it's the idle, where do you adjust it. This is my 3rd carbed Accord. Thanks for any input.

It's really annoying having the idling problem like this. I'd rather give the car the benefit of the doubt, and fix it.

[A20A1]

Seems like a vacuum leak and you throttle controller is doing it's job trying to compensate.

https://www.3geez.com/forum/showthread.php?t=46572

What ever you do, try and find/fix any problems first... you can always raise the idle using the throttle stop screw but that will just mask the problem.

https://www.3geez.com/forum/showthread.php?t=48569

[Ryoni777]

Thanks, for the quick reply. I kinda thought it was a vacuum leak. You don't think it's also bad spark plugs or dirty fuel filters, do you? We adjusted the idle a tad.. and it doesn't have a jumpy idle as much as before, although it is still present. Do you think it could be the PCV valve, too?