idle question

pd0019 · 05-07-2007, 07:49 PM

i have an 07 ex couple. i did a search but didnt find anything.

so as i am decelerating, i have noticed that as i approach idle, my rpms will go down to 400-500 and then up to 1000 before settling down to 650-700 at a complete stop. this is especially noticeable at night. any ideas of what is causing this?

i have a injen CAI and i cant remember if this was happening before my install. i did let my car idle for ~15 min after the install to let the computers adjust to the new airflow.

thanks

**Yodums** · 05-07-2007, 07:55 PM

What kind of transmission do you have? Does the car feel like it's bogging under normal operating conditions? It shouldn't be jumping up and down. I just know that your RPMs will never stay steady until it sits and the steering wheel or power steering isn't engaged.

06blaksi · 05-07-2007, 07:57 PM

Mine does this too on my Si but very rarely.....maybe once every week or two. It never happened until I installed the Injen CAI. I should also mention it only happens when I'm stopped and rev the engine a little

pd0019 · 05-07-2007, 08:19 PM

sorry...i have a manual.

i thought it was weird that its fluctuating so much. 500rpm jump seemed like a lot to me. my problem is happening pretty much everyday for me, not as much during the day...but definetly noticeable at night.

05-07-2007, 07:49 PM	#1 (permalink)
pd0019 Senior Member Join Date: Jan 2007 Location: SoCal Age: 21 Posts: 318 iTrader: 2 / 100%	idle question i have an 07 ex couple. i did a search but didnt find anything. so as i am decelerating, i have noticed that as i approach idle, my rpms will go down to 400-500 and then up to 1000 before settling down to 650-700 at a complete stop. this is especially noticeable at night. any ideas of what is causing this? i have a injen CAI and i cant remember if this was happening before my install. i did let my car idle for ~15 min after the install to let the computers adjust to the new airflow. thanks

05-07-2007, 07:55 PM	#2 (permalink)
Yodums Scrodums Join Date: May 2006 Location: Ottawa, Canada Posts: 8,167 Hiro Nakamura iTrader: 9 / 100%	What kind of transmission do you have? Does the car feel like it's bogging under normal operating conditions? It shouldn't be jumping up and down. I just know that your RPMs will never stay steady until it sits and the steering wheel or power steering isn't engaged. __________________ 2007 Taffeta White Civic Si Coupe

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05-07-2007, 07:57 PM	#3 (permalink)
06blaksi Senior Member Join Date: Apr 2006 Location: Westchester NY Age: 40 Posts: 49,305 iTrader: 23 / 100%	Mine does this too on my Si but very rarely.....maybe once every week or two. It never happened until I installed the Injen CAI. I should also mention it only happens when I'm stopped and rev the engine a little

05-07-2007, 08:19 PM	#4 (permalink)
pd0019 Senior Member Join Date: Jan 2007 Location: SoCal Age: 21 Posts: 318 iTrader: 2 / 100%	sorry...i have a manual. i thought it was weird that its fluctuating so much. 500rpm jump seemed like a lot to me. my problem is happening pretty much everyday for me, not as much during the day...but definetly noticeable at night.