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Hey guys i'm derek i drive a 98 civic ex, 5spd, with a D16y8, completely stock minus an AEM short ram intake.

For about 3 weeks my civic has been idling oddly.
After its warmed up and the car is in motion i will put in the clutch to coast and the RPMs will stay stuck at 1.5 - 2 and i have to slightly rev the motor to "un-stick" it.

When i am stopped the RPMs will again stay stuck at 1.5 - 2, but only for about 5 seconds before dropping almost to zero.

On rare occasion the motor will idle normally (700-900 RPMs) and it will be fine. but this is only when it is not moving.

i'm not sure which diriection to go. Any help would be GREATLY appreciated.

thanks

 
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There is no way someone on this forum has NOT had this problem.

ANYONE out there??

 
Rep Power: 811

im sure its an intake system problem. the idle air valve and fast idle thermo valves located on or around the throttle body can get clogged with carbon buildup and produce the sticking you mention. just unbolt all the lil valves on the throttle body or intake mani and flush them out with carb cleaner. may as well replace the pcv valve too.

 
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thanks it turned out to be the PCV valve!!!