I have a strange idle problem that only happens occasionally when I start my car after its been warmed up. Say I stop and get something from 7-11. When I start my car it will sometimes idle very low, around 500 rpm, shake a bit, and then the rpms bounce up about 100 rpms at a time to 650-700 rpm and then run relatively smooth. I have recently done (in the last 500 miles):

Cap and rotor
coil
plug wires
plugs
fuel filter
cleaned icav
idle speed adjustment
timing belt and water pump (done by mechanic)
radiator
valve adjustment(done by mechanic)

The plugs are properly gapped ngks
wires are ngk...
Cap and rotor are napa parts

Could it be something ignition related? (ignitor or distributor?)
Maybe when I cleaned the ICAV with carb cleaner it messed something up?

No CELS.

Any suggestions?


Modified by bizmackus at 8:19 PM 2/16/2007

 

idle air control valve probly just need a new one. Im running a iacv Block off plate on my car.

 

could also be your FITV check that and clean it

 

check out this it could help you
https://honda-tech.com/zerothread/1564019

 

thanks, but my car is a 97 ls manual so I have no fitv... probably should have included that info to begin with... 100,000 miles too.