idle is higher after getting my muffler delete...why? - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

6bloodychunks · 12-01-2010, 03:14 AM

ok, just got my muffler delete done today,

and i noticed it is idling higher now by at least a couple hundred rpm.

and when i rev it it takes longer for the rpm's to come back down.

any thoughts?

Camarorss350 · 12-01-2010, 07:28 AM

never heard of an issue with a muffler delete... is it an auto? maybe try a battery disconnect/fuse pull? only thing i could think of...and im just guessing haha

stikSS · 12-01-2010, 07:31 AM

could be the computer resetting and or adjusting itself.... driving it a 20 miles or so may help that.

6bloodychunks · 12-01-2010, 08:25 PM

Quote:

Originally Posted by stikSS

could be the computer resetting and or adjusting itself.... driving it a 20 miles or so may help that.

drove it alot today, it still does it.

would i have to do a fuse pull after changing the exhaust??

redZ28 · 12-01-2010, 09:59 PM

The problem is that the low-end torque meter is out of calibration due the new reduced back pressure -see it all the time.

GEEo · 12-01-2010, 10:02 PM

thats weird bro I have my muffler delete for a little over 6 months now and never had any problems w/ it. Love the way it sounds BTW.

Try the fuse pull??

96/10SS · 12-01-2010, 10:06 PM

Quote:

Originally Posted by redZ28

The problem is that the low-end torque meter is out of calibration due the new reduced back pressure -see it all the time.

this sounds quite logical to me

6bloodychunks · 12-01-2010, 10:09 PM

Quote:

Originally Posted by redZ28

The problem is that the low-end torque meter is out of calibration due the new reduced back pressure -see it all the time.

so whats the fix for this??

btw ,I DEFINATELY LOVE THE WAY IT SOUNDS!!!!!!!!!!

caverman · 12-01-2010, 11:21 PM

I had a muffler delete for at least 3500 miles and never had an issue with the idle.

6bloodychunks · 12-01-2010, 11:27 PM

Quote:

Originally Posted by caverman

I had a muffler delete for at least 3500 miles and never had an issue with the idle.

its very very slight,it only raised the idle by about 200rpm or so.

but i noticed that when i let off the gas and push in the clutch to shift

the motors rpm climbs slightly between shifts with my foot off the throttle.

Orange Krate · 12-02-2010, 01:02 AM

Quote:

Originally Posted by 6bloodychunks

its very very slight,it only raised the idle by about 200rpm or so. but i noticed that when i let off the gas and push in the clutch to shift the motors rpm climbs slightly between shifts with my foot off the throttle.

Sounds very suspicious. Did you do the delete or did someone else do it for you? Was it on a rack or a drive over "pit"? It almost (probably not) sounds like a vacuum leak somewhere but since I am no expert on the LS3 and the new electronics I am speaking old school. There are so many sensors and microprocessors on these cars I yield to the gurus in here. I will be following this with interest.

6bloodychunks · 12-02-2010, 01:14 AM

Quote:

Originally Posted by Orange Krate

Sounds very suspicious. Did you do the delete or did someone else do it for you? Was it on a rack or a drive over "pit"? It almost (probably not) sounds like a vacuum leak somewhere but since I am no expert on the LS3 and the new electronics I am speaking old school. There are so many sensors and microprocessors on these cars I yield to the gurus in here. I will be following this with interest.

i had it done at a good shop localy, he did a great job, it was raised on a 2 post rack,

he had me behind the car telling him when the pipes were centered in the square chrome pieces of the ground effects,

then he would weld em in place.

i think he did a fantastic job,but now i am noticing the idle thing.

and the rpm increase between shifts does sound like an air leak, but i dont see how the guy that deleted them for me could have done something to it because he only stood under the rear of the car.

surely there arent any vacuum lines in the rear............are there? LOL

FEN · 12-02-2010, 04:55 AM

Was your battery disconnected during the welding? Read other posts that stated "disconnect battery before doing any welding"....maybe an expert can chime in as what could have happened if this was not done??

6bloodychunks · 12-02-2010, 08:53 AM

Quote:

Originally Posted by FEN

Was your battery disconnected during the welding? Read other posts that stated "disconnect battery before doing any welding"....maybe an expert can chime in as what could have happened if this was not done??

no, my battery wasnt disconnected during the welding.

what could this have hurt??????

leave it to me to screw something up.......

12-01-2010, 03:14 AM	#1
6bloodychunks Drives: 2011 2SS/RS SGM Join Date: May 2010 Location: uniontown,PA Posts: 787	idle is higher after getting my muffler delete...why? ok, just got my muffler delete done today, and i noticed it is idling higher now by at least a couple hundred rpm. and when i rev it it takes longer for the rpm's to come back down. any thoughts? __________________ ---2011 synergy green 2SS/RS--- 09/27/2010 - (3800) 10/01/2010 - (4200) 10/09/2010 - (4800) Vehicle on final destination route 10/19/2010 - (5000) delivered to dealer 11/19/2010 - (6000) delivered to customer

12-01-2010, 07:31 AM	#3
stikSS 9691 & 97586 Drives: 2010 SS, 1999 SS, 1993 Z28 Join Date: Mar 2009 Location: Sanford, NC Posts: 2,814 View My Garage	could be the computer resetting and or adjusting itself.... driving it a 20 miles or so may help that. __________________ http://www.camarosouth.com camarosouth@hotmail.com

12-01-2010, 11:21 PM	#9
caverman Drives: '69 SS Convertible Join Date: May 2009 Location: DFW, TX Posts: 7,111	I had a muffler delete for at least 3500 miles and never had an issue with the idle. __________________ *-2010 Camaro* 2SS \| M6 \| VR w/White Stripes \| 1 3/4" KOOKS - 3" Magnaflow \| LPE 3.91 gears \| ADM tuned \| Halltech w/ADM Scoop \| Spohn/BMR Trailing Arm/Toe Rod \| BC Coilovers\| Pedders FE4 ZL1 swaybars \| Cradle/Diff/Radius Rod bushings \| VMax TB \| Morimoto Projectors \| MGW shifter \| Red Calipers Build Journal

12-02-2010, 04:55 AM	#13
FEN Drives: BLACK 2SS/RS Join Date: Sep 2009 Location: Florida Posts: 1,092	Was your battery disconnected during the welding? Read other posts that stated "disconnect battery before doing any welding"....maybe an expert can chime in as what could have happened if this was not done?? __________________ CCW polished 505a's Front 20x10 w/275/40/20's Rear 20x11.5 w/305/35/20's Eibach 1" Pro Spring Kit Factory GFX MPD1 spoiler painted bowties 15% tint

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12-01-2010, 07:28 AM	#2
Camarorss350 camaro blogger Drives: 2010 Black on Black SS/RS Join Date: Jul 2009 Location: Central NJ + Atlanta GA Posts: 358	never heard of an issue with a muffler delete... is it an auto? maybe try a battery disconnect/fuse pull? only thing i could think of...and im just guessing haha

12-01-2010, 09:59 PM	#5
redZ28 Drives: 2013 ZL1 Conv. Join Date: Jan 2009 Location: Texas Posts: 131	The problem is that the low-end torque meter is out of calibration due the new reduced back pressure -see it all the time.

12-01-2010, 10:02 PM	#6
GEEo OKCamaros Drives: 4 banger Diesel Join Date: Mar 2010 Location: Philippines Posts: 4,572	thats weird bro I have my muffler delete for a little over 6 months now and never had any problems w/ it. Love the way it sounds BTW. Try the fuse pull??