Wierd Vtec sound

06_civic_si_gi · 07-18-2006, 04:18 PM

well, i went to a race after a long night of cruzin and then i started my car after the race and hit it in first and when it hit vtec the sound was twice as loud as i have ever heard then i shifted and then it did it again in 2nd gear it really freaked my out then i tried it in 3rd and it sounded normal soo i slowed down and pulled over and my car was idling really rough you could feel the engine idling that how bad it was so i shut it off for like 10-20mins and then started it again and the rough idle was gone that was good news then i hit vtec in 1st and 2nd and 3rd and it all sounded normal

has anyone else had this problem??
what could of caused it?
does anyone else car seem to acted alittle different with a cai on then how it drove with a stock one? (i don't mean it had more power of anything)

driveshift · 07-18-2006, 10:09 PM

You ecu probable went under a short shock where it hasn't experienced what you do it and it adapted to it. The "i" in i-VTEC puts the machine to fix itself sometimes. The rough idle might of came from the confusion between the higher with the lower profile lobes. Just try not to be too rev-happy till you've fully broken in your engine.

si_civic · 07-18-2006, 10:41 PM

Quote:

Originally Posted by driveshift

You ecu probable went under a short shock where it hasn't experienced what you do it and it adapted to it. The "i" in i-VTEC puts the machine to fix itself sometimes. The rough idle might of came from the confusion between the higher with the lower profile lobes. Just try not to be too rev-happy till you've fully broken in your engine.

+1, couldn't have said it better myself.

neolives7 · 07-18-2006, 10:56 PM

Quote:

Originally Posted by si_civic

+1, couldn't have said it better myself.

How many miles you considering broken in?

2RotorMotor · 07-19-2006, 12:34 PM

Quote:

Originally Posted by driveshift

You ecu probable went under a short shock where it hasn't experienced what you do it and it adapted to it. The "i" in i-VTEC puts the machine to fix itself sometimes. The rough idle might of came from the confusion between the higher with the lower profile lobes. Just try not to be too rev-happy till you've fully broken in your engine.

ARe you serious? "I" means the computer adjusts the intake cam timing for what it seems appropriate... And its physically impossible for the high lobe to intervine with the low cam... You should really read how vtec works, before you start giving people suggestions...

cappykd · 07-19-2006, 01:10 PM

+1

Well Said.

06_civic_si_gi · 07-19-2006, 05:12 PM

yeah ummm i have like 6000 miles on it already if it ain't broken in already i got a BIG Problem lol

Sam388 · 07-19-2006, 06:16 PM

Quote:

Originally Posted by driveshift

You ecu probable went under a short shock where it hasn't experienced what you do it and it adapted to it. The "i" in i-VTEC puts the machine to fix itself sometimes. The rough idle might of came from the confusion between the higher with the lower profile lobes. Just try not to be too rev-happy till you've fully broken in your engine.

Holy Monkey. I thought I heard it all.

2RotorMotor · 07-20-2006, 02:02 AM

Quote:

Originally Posted by Sam388

Holy Monkey. I thought I heard it all.

LMAO....

07-18-2006, 04:18 PM	#1 (permalink)
06_civic_si_gi Senior Member Join Date: Dec 2005 Location: Grand Island Nebraska Age: 24 Posts: 365 Miles iTrader: 1 / 100%	Wierd Vtec sound well, i went to a race after a long night of cruzin and then i started my car after the race and hit it in first and when it hit vtec the sound was twice as loud as i have ever heard then i shifted and then it did it again in 2nd gear it really freaked my out then i tried it in 3rd and it sounded normal soo i slowed down and pulled over and my car was idling really rough you could feel the engine idling that how bad it was so i shut it off for like 10-20mins and then started it again and the rough idle was gone that was good news then i hit vtec in 1st and 2nd and 3rd and it all sounded normal has anyone else had this problem?? what could of caused it? does anyone else car seem to acted alittle different with a cai on then how it drove with a stock one? (i don't mean it had more power of anything)

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
What does the vtec sound compare to in the new si??????	Bmaga123	Civic SI	7	02-10-2008 04:21 PM
Rear suspension area making slight sound	NBCivic	Mechanical Problems & Technical Chat	1	06-01-2006 07:07 AM
vtec sound	tagman	Civic SI	9	03-11-2006 12:18 AM
Windshield/Dash Creaking Sound	Etrain	Driving Experience	2	01-29-2006 03:01 AM
Sound Quality in the 06 civic	hamm	I.C.E., Electrical, Security, & Navigation	9	12-30-2005 09:41 AM

07-18-2006, 10:09 PM	#2 (permalink)
driveshift Senior Member Join Date: Jul 2006 Location: San Jose CA Posts: 137 iTrader: 0 / 0%	You ecu probable went under a short shock where it hasn't experienced what you do it and it adapted to it. The "i" in i-VTEC puts the machine to fix itself sometimes. The rough idle might of came from the confusion between the higher with the lower profile lobes. Just try not to be too rev-happy till you've fully broken in your engine.

07-19-2006, 01:10 PM	#6 (permalink)
cappykd Senior Member Join Date: Jun 2006 Location: SoCal Age: 39 Posts: 1,806 Kirk iTrader: 9 / 100%	+1 Well Said.

07-19-2006, 05:12 PM	#7 (permalink)
06_civic_si_gi Senior Member Join Date: Dec 2005 Location: Grand Island Nebraska Age: 24 Posts: 365 Miles iTrader: 1 / 100%	yeah ummm i have like 6000 miles on it already if it ain't broken in already i got a BIG Problem lol