Accelerates by itself

unplatano1 · 06-19-2008, 10:51 AM

My cb7 accelerates by itself. Like when its in park, the RPM goes up and down. What can it be? any ideas

cvc7chris · 06-19-2008, 10:53 AM

that's a idle problem.

Check for Vaccum leaks..or something.

demortey@mac.co · 06-19-2008, 12:17 PM

my cb does the same thing. when you put it into gear it levels out though. i think it may be the IAC valve. not 100% sure tho. definitely try to change the PCV valve though. that made mine a bit less agressive

tonyyaaj · 06-19-2008, 12:17 PM

Can you just adjust it?

CO-jack · 06-19-2008, 12:18 PM

I found this:

http://www.cb7tuner.com/vbb/showthre...highlight=idle

cvc7chris · 06-19-2008, 12:24 PM

Quote:

Originally Posted by CO-jack

I found this:

http://www.cb7tuner.com/vbb/showthre...highlight=idle

well not if it idles up and down..

you gotta clean your iacv valve probally..

shanleycb7 · 06-19-2008, 12:25 PM

same thing happened to me when i installed my h22- it would just free rev- i had a leak in the im gasket

lonski · 06-19-2008, 12:48 PM

My car does that most of the time. I cleaned the IAC, didn't fix it. I'm gonna try the FITV, someone here said something about a loose valve that needs tightening.

newyorker · 06-19-2008, 12:52 PM

Get one from junk yard. put it in your pocket.

lilviper97 · 06-20-2008, 07:56 AM

Definitely try cleaning the IAC valve. Also, make sure coolant level is full, AND Bled. May need to replace the IAC valve after all. Good luck!

accord junkie · 06-20-2008, 08:30 AM

yeah u gotta love that loping idle hdas seem 2 develope mine does also but i know that i hve a crack in 1 of my runners on my i/m. just a matter of finding another a6 or h23 i/m. cool but i have slowed it down and most of tim its not noticeable this is what i did \.started car let warm up 2 fan cycles loosen distributer and turn all the way retarded my idle prob stopped but now i was timed 100% retarded lol.
so knowin tat its permitable 2 run 2 degrees advaced or retarded with no probs so i timed it 1 degree retarded i still get a bouncy idle sometimes but not nearly as often and when i do its not very much. cant say this will help every 1ns idle prob since the prob could b caused by so many spots on the i/m. inspect ur vaccume lines carefully inspect ur intire i/m for crak or damage the bet way 2 determin a leak is with a can of throttle body cleaner. spray all around ur i/m whil car is running if u hit the spot the car will drop in idl and sound like it wants 2 stall that will tell u where the leak is. good luck and happy hunting

unplatano1 · 06-20-2008, 09:07 AM

When the RPM goes up and down, I turn the idle adjust screw below the throttle body and it stops but magically comes does it again. I have to kept turning the screw

lonski · 06-23-2008, 12:41 PM

Did you try the fitv? I did it yesterday and when I drove to work this morning and parked the car, it bounced up and down for like 3 times, then it settled. I dunno if it'll help, but it's pretty easy to do.

06-19-2008, 10:51 AM	#1
unplatano1 CB7tuner Member Join Date: May 2008 Posts: 80	Accelerates by itself My cb7 accelerates by itself. Like when its in park, the RPM goes up and down. What can it be? any ideas

06-19-2008, 10:53 AM	#2
cvc7chris CB7tuner Member Join Date: Aug 2007 Location: Roanoke, Va Posts: 4,122	that's a idle problem. Check for Vaccum leaks..or something. __________________ Ride: 2002 Lexus IS300

06-19-2008, 12:25 PM	#7
shanleycb7 Contributing Member Join Date: Apr 2007 Location: Foresthill, CA Posts: 466	same thing happened to me when i installed my h22- it would just free rev- i had a leak in the im gasket __________________ Bought from: 92acclude, almostJDM, cali-racer, MikeW, rexload, slick, sackingz123, so-calsfinest, lindiz, yeamans17 Sold to: timmy0tool, sackingz123, judonoh, jdmhondaman, jdmaccord91,Ofr mycb7.com Members Ride

06-19-2008, 12:52 PM	#9
newyorker CB7tuner Member Join Date: Jun 2008 Location: New York Posts: 36	Get one from junk yard. put it in your pocket. __________________

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06-19-2008, 12:17 PM	#3
demortey@mac.co CB7tuner Member Join Date: Mar 2008 Location: Niagara Falls, Canada Posts: 196	my cb does the same thing. when you put it into gear it levels out though. i think it may be the IAC valve. not 100% sure tho. definitely try to change the PCV valve though. that made mine a bit less agressive

06-19-2008, 12:17 PM	#4
tonyyaaj CB7tuner Member Join Date: Jun 2008 Location: Minnesota Posts: 106	Can you just adjust it?

06-19-2008, 12:18 PM	#5
CO-jack CB7tuner Member Join Date: Jun 2008 Location: Denver, Co Posts: 54	I found this: http://www.cb7tuner.com/vbb/showthre...highlight=idle

06-19-2008, 12:48 PM	#8
lonski CB7tuner Member Join Date: Aug 2007 Posts: 575	My car does that most of the time. I cleaned the IAC, didn't fix it. I'm gonna try the FITV, someone here said something about a loose valve that needs tightening.

06-20-2008, 07:56 AM	#10
lilviper97 CB7tuner Member Join Date: Jun 2008 Posts: 32	Definitely try cleaning the IAC valve. Also, make sure coolant level is full, AND Bled. May need to replace the IAC valve after all. Good luck!

06-20-2008, 08:30 AM	#11
accord junkie CB7tuner Member Join Date: Aug 2007 Location: new-brunswick canada Posts: 212	yeah u gotta love that loping idle hdas seem 2 develope mine does also but i know that i hve a crack in 1 of my runners on my i/m. just a matter of finding another a6 or h23 i/m. cool but i have slowed it down and most of tim its not noticeable this is what i did \.started car let warm up 2 fan cycles loosen distributer and turn all the way retarded my idle prob stopped but now i was timed 100% retarded lol. so knowin tat its permitable 2 run 2 degrees advaced or retarded with no probs so i timed it 1 degree retarded i still get a bouncy idle sometimes but not nearly as often and when i do its not very much. cant say this will help every 1ns idle prob since the prob could b caused by so many spots on the i/m. inspect ur vaccume lines carefully inspect ur intire i/m for crak or damage the bet way 2 determin a leak is with a can of throttle body cleaner. spray all around ur i/m whil car is running if u hit the spot the car will drop in idl and sound like it wants 2 stall that will tell u where the leak is. good luck and happy hunting

06-20-2008, 09:07 AM	#12
unplatano1 CB7tuner Member Join Date: May 2008 Posts: 80	When the RPM goes up and down, I turn the idle adjust screw below the throttle body and it stops but magically comes does it again. I have to kept turning the screw

06-23-2008, 12:41 PM	#13
lonski CB7tuner Member Join Date: Aug 2007 Posts: 575	Did you try the fitv? I did it yesterday and when I drove to work this morning and parked the car, it bounced up and down for like 3 times, then it settled. I dunno if it'll help, but it's pretty easy to do.