Rev Hang changes when cold

Si Speed 317 · 01-19-2008, 02:46 AM

I know I've noticed it but I never payed attention to it like I did today. My friends Supra revs up quick and goes back to idle quick, but my Si hangs like a monkey in a really high tree.... but when my Si isn't fully warmed up and I give it a little rev, no rev hang. I searched but didn't find what I was looking for. Does a reflash fix the hang anymore?

Si Speed 317 · 01-19-2008, 03:11 PM

Bump.

rwc · 01-19-2008, 05:01 PM

rev hang happens only if you shift while accelerating. if your rpms are stable or dropping as you shift(or just push in the clutch), it will not "hang". its there only to help upshifts

cambodianricer · 01-19-2008, 06:13 PM

i think it's cause the engine has to warm up. in the morning i let my engine warm up at it stays at like 2K and i can drive around like that only with the clutch

.. but it's sooo slow.

***Izzy*** · 01-19-2008, 06:15 PM

I always sit tight to let it drop below 1.5k before setting off.

Reflash is only for the first few 2006 Si's. But, no, it will still be there -- but less intrusive.

cambodianricer · 01-19-2008, 08:35 PM

yea. i always let it warm up until it idles normally

Si Speed 317 · 01-20-2008, 06:50 PM

I let my car warm up, but I'm saying when I just tap the gas and rev it a little bit it goes up and down the way it should, not the way it does when it's warm.

radiocontrolhead · 01-20-2008, 06:56 PM

You're a smart cookie!

I Vtec, do you? · 01-20-2008, 06:59 PM

I've noticed the same thing. This car is sooo easy to shift smoothly when it's cold. Wish the damn thing would just keep dropping the revs like that instead of holding them

01-19-2008, 02:46 AM	#1 (permalink)
Si Speed 317 Senior Member Join Date: Apr 2007 Location: Long Island Posts: 3,800 Dan iTrader: 26 / 100%	Rev Hang changes when cold I know I've noticed it but I never payed attention to it like I did today. My friends Supra revs up quick and goes back to idle quick, but my Si hangs like a monkey in a really high tree.... but when my Si isn't fully warmed up and I give it a little rev, no rev hang. I searched but didn't find what I was looking for. Does a reflash fix the hang anymore?

01-19-2008, 06:15 PM	#5 (permalink)
*Izzy* Supreme Pizza! Join Date: Mar 2006 Location: Azusa, CA Age: 25 Posts: 11,935 iTrader: 5 / 100%	I always sit tight to let it drop below 1.5k before setting off. Reflash is only for the first few 2006 Si's. But, no, it will still be there -- but less intrusive. __________________

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
DBW Rev Hang thoughts	habitat	Civic SI	12	01-08-2008 04:53 PM
gas octane affecting rev hang	FA5_in_black	Civic SI	4	11-19-2007 08:55 PM
Another Rev Hang Post (Brought car to dealership this morning)	nalinc23	Civic SI	17	11-10-2007 02:58 AM
Problem when coming to a stop...rev hang???	jwoair23	Mechanical Problems & Technical Chat	42	03-28-2007 02:30 PM
Return of the Rev Hang?	taejinah	Mechanical Problems & Technical Chat	1	11-02-2006 07:43 PM

01-19-2008, 03:11 PM	#2 (permalink)
Si Speed 317 Senior Member Join Date: Apr 2007 Location: Long Island Posts: 3,800 Dan iTrader: 26 / 100%	Bump.

01-19-2008, 05:01 PM	#3 (permalink)
rwc Senior Member Join Date: May 2007 Location: Riverside, CA Age: 25 Posts: 160 Randy iTrader: 1 / 100%	rev hang happens only if you shift while accelerating. if your rpms are stable or dropping as you shift(or just push in the clutch), it will not "hang". its there only to help upshifts

01-19-2008, 06:13 PM	#4 (permalink)
cambodianricer Senior Member Join Date: Dec 2007 Location: Rside Posts: 4,991 Jason iTrader: 6 / 100%	i think it's cause the engine has to warm up. in the morning i let my engine warm up at it stays at like 2K and i can drive around like that only with the clutch .. but it's sooo slow.

01-19-2008, 08:35 PM	#6 (permalink)
cambodianricer Senior Member Join Date: Dec 2007 Location: Rside Posts: 4,991 Jason iTrader: 6 / 100%	yea. i always let it warm up until it idles normally

01-20-2008, 06:50 PM	#7 (permalink)
Si Speed 317 Senior Member Join Date: Apr 2007 Location: Long Island Posts: 3,800 Dan iTrader: 26 / 100%	I let my car warm up, but I'm saying when I just tap the gas and rev it a little bit it goes up and down the way it should, not the way it does when it's warm.

01-20-2008, 06:56 PM	#8 (permalink)
radiocontrolhead Senior Member Join Date: Apr 2006 Location: Hollywood, ca Age: 21 Posts: 2,927 Danny iTrader: 0 / 0%	You're a smart cookie!

01-20-2008, 06:59 PM	#9 (permalink)
I Vtec, do you? Senior Member Join Date: Jan 2007 Location: MN Age: 19 Posts: 8,564 Jeremy iTrader: 11 / 100%	I've noticed the same thing. This car is sooo easy to shift smoothly when it's cold. Wish the damn thing would just keep dropping the revs like that instead of holding them