98 honda civic lx idles high and when is warm idle goes up and down. I need help!
#1
98 honda civic lx idles high and when is warm idle goes up and down. I need help!
My 98 honda civic lx (automatic) idles high around 2000rpm when the engine is cold and when is hot idle goes up and down. I recently changed distributor, distributor cap and rotor. No engine light. Any idea what it could be? Thanks
#2
look to see if you have a iacv on the back of your intake maifold, if so then it needs cleaning,
http://www.team-integra.net/sections...ArticleID=1174
http://www.team-integra.net/sections...ArticleID=1174
#5
thanks for your help 94civichatchback! i cleaned the iacv as you told me, but it didnt chance anything idle still goes up and down. I noticed when the a/c is running, idle stays at 2000rpm, and it doesnt go up and down. Any other suggestion?
#10
bleed your coolant system and get the air bubbles out,
unplug your iacv while the car is running does it make a difference?
if yes then its ok, if no then its bad and will need replaced.
the only other thing that causes idle to go up and down would be your tps sensor,
you can either buy a new throttle body and swap it out, or get a dremel and make slots into the screws and unscrew it with a flat head screw driver and swap out the tps sensor.
unplug your iacv while the car is running does it make a difference?
if yes then its ok, if no then its bad and will need replaced.
the only other thing that causes idle to go up and down would be your tps sensor,
you can either buy a new throttle body and swap it out, or get a dremel and make slots into the screws and unscrew it with a flat head screw driver and swap out the tps sensor.