I've been searching for an answer to this for about 3 months. I have a CRX, and the car had been sitting for about 5 years, I've had it on the running and on the road for about 4 months now. Ever since it's resurection, it's had a low idle problem.

When i start the car up in the morning, it idles perfectly, but as it warms up, the idle drops. after a good 30 minutes of driving, the idle sits at about 300-400 and the car shakes. I adjusted the idle, cold it was idle-ing (?) at about 2000, once it warmed up it was about 400-550

i've replaced the wires, dizzy coil. dizzy rotor, and the dizzy cap, and it's still not any better.

I didn't use a torque wrench when putting in the spark plugs, so they may not be at the exact position they need to be at.

there also seems to be a grounding problem.

plz help? plz?

 

Clean the Idle Air Control Valve (IACV), take it out and soak it in carb cleaner, or just seafoam your intake if you have to. Possibly vacuum hose leak, map sensors, etc etc.

There are oodles of tedious possibilities.

My biggest suggestion, put on your thinking cap, and delve into the HT search feature.
(I promise the amount of results you will get for searching "low idle" will have you shitting a brick)

 

thanks, i think this is the first time i've been excited about shitting a brick.