This is on a 99 civic lx. I got a CEL and it was P0505 which is an Idle Control Malfunction. The car ides at like 2000rpm when its warm. So i pulled the intake off and started unpluging sensors too see if it made a difference. I found that if i put my finger over the hole in the throttle body that goes to the IAC is idles perfect. So i swaped in another IAC and it does the same exact thing. Any ideas?

 

Play around with the FITV clean it out and see what happens

 

Thought 96 and newer cars dont have a FITV

 

see if the sas air bypass screw is turned too loose... or try unplugging the tps.......... any vaccum leaks?? throttle stop screw been tampered with?? idle kicker for ac may be signaling iacv to compensate fo calculated ac load...

 

o vucumm leaks i did unplug the tps and nothning, the throttle screw has not been touched

 

try turning the by pass screw all the way to the right ........... no offense meant but do you know where this is?? it is not the throttle stop screw..

 

But the car was running fine before this happened so how would the bypass screw out of spec?

 

bump

 

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