MPG's dropped after adding a CAI?? - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

D.HOOD · 12-08-2012, 12:39 PM

I recently added a CAI inc intake on my 2011 L99 SS. Before installing it, I was getting close to 22 mpg's on the hwy. After installing my intake, I noticed a slight drop in my mpg's. I thought I was suppose to get better with the CAI? Has anyone else experienced a problem like this? I've seen the threads about the "strong" and "weak" MAF sensors and I have a weak one. Could this be a cause of my problem? Any insight would be appreciated!

Iam Broke · 12-08-2012, 01:00 PM

No CEL?

MAF in the wrong way? Leaks?

Many MAF issues can force open loop and kill fuel economy but I would expect a CEL.

rsboyz · 12-08-2012, 01:03 PM

i have a 2012 RS with magnaflow x pipe.. what else can i do to try and give my car a better sound? What air filter is best?

D.HOOD · 12-08-2012, 01:04 PM

No CEL's, I'm pretty sure I don't have any leaks and I definitely didn't put the sensor in the wrong way.

Iam Broke · 12-08-2012, 01:07 PM

Probably just putting your foot farther in the TB. lol.

D.HOOD · 12-08-2012, 01:09 PM

Quote:

Originally Posted by Iam Broke

Probably just putting your foot farther in the TB. lol.

Haha!! That just might be it! I definitely like the sound of the engine better with the intake!

Mr_Draco · 12-08-2012, 02:44 PM

Quote:

Originally Posted by D.HOOD

I recently added a CAI inc intake on my 2011 L99 SS. Before installing it, I was getting close to 22 mpg's on the hwy. After installing my intake, I noticed a slight drop in my mpg's. I thought I was suppose to get better with the CAI? Has anyone else experienced a problem like this? I've seen the threads about the "strong" and "weak" MAF sensors and I have a weak one. Could this be a cause of my problem? Any insight would be appreciated!

Here's the thing, anytime you increase air flow (cai, headers, etc), in order for computer to keep the same Air/Fuel Ratio, it has to increase the amount of gas that enters into the combustion chamber which in turn results in slightly lower MPGs.

When I added my CAI and ported TB I lost about 2 MPG. I got my car tuned and I gained 2 MPG compared to what I had before I started modding. After LT headers, I went back down to what I was with just a CAI and TB.

litle88 · 12-08-2012, 03:11 PM

Your lucky you get that! Lol

MPG's be damned.

Apex Motorsports · 12-08-2012, 04:10 PM

When this happens it is usually the result of a suddenly heavier right foot. This seems to be another side effect of new mods.

BLACK10 · 12-08-2012, 08:56 PM

Tune!

D.HOOD · 12-08-2012, 10:52 PM

I'm trying to resist to the tune as I'm trying to hold on to my warranty!! We shall see tho!

The Blue Ox · 12-09-2012, 09:06 PM

Quote:

Originally Posted by D.HOOD

I'm trying to resist to the tune as I'm trying to hold on to my warranty!! We shall see tho!

Didn't seem to go down in MPG's after K&N, I noticed after Solo HFC's seem to go down! Prolly could badly use a tune! I'm like you, trying to hold off a little before voiding warranty! I have coated long tubes here I'm dieing to put on and tune! Hard to wait! Still gets pretty good MPG's on highway!

LSR SAL · 12-12-2012, 05:41 PM

Most likely you're enjoying the intake a little too much

. A tune would do wonders for drive ability and help mpg. After your warranty is up feel free to give me a call and ill give you a sweet discount!

litle88 · 12-12-2012, 06:03 PM

Warrantys be damned! Your just gonna start breaking stuff lol. Might as well ditch it and start upgrading to better parts lol.

12-08-2012, 12:39 PM	#1
D.HOOD Drives: 2011 Camaro SS Join Date: Oct 2012 Location: Charlotte, NC Posts: 60 View My Garage	MPG's dropped after adding a CAI?? I recently added a CAI inc intake on my 2011 L99 SS. Before installing it, I was getting close to 22 mpg's on the hwy. After installing my intake, I noticed a slight drop in my mpg's. I thought I was suppose to get better with the CAI? Has anyone else experienced a problem like this? I've seen the threads about the "strong" and "weak" MAF sensors and I have a weak one. Could this be a cause of my problem? Any insight would be appreciated! __________________

12-08-2012, 01:00 PM	#2
Iam Broke PHAT B33 Drives: 2012 TF3 Camaro 2SS/RS M6 Join Date: Jun 2012 Location: Dark of the Moon Posts: 1,460 View My Garage	No CEL? MAF in the wrong way? Leaks? Many MAF issues can force open loop and kill fuel economy but I would expect a CEL. __________________ Another 1 of 371 '12 T3 LS3 M6's built.

12-08-2012, 01:04 PM	#4
D.HOOD Drives: 2011 Camaro SS Join Date: Oct 2012 Location: Charlotte, NC Posts: 60 View My Garage	No CEL's, I'm pretty sure I don't have any leaks and I definitely didn't put the sensor in the wrong way. __________________

12-08-2012, 01:07 PM	#5
Iam Broke PHAT B33 Drives: 2012 TF3 Camaro 2SS/RS M6 Join Date: Jun 2012 Location: Dark of the Moon Posts: 1,460 View My Garage	Probably just putting your foot farther in the TB. lol. __________________ Another 1 of 371 '12 T3 LS3 M6's built.

12-08-2012, 03:11 PM	#8
litle88 V8 Lounge member #2 Drives: 2001 Ws6 Join Date: Sep 2009 Location: Burbank,IL Posts: 6,373	Your lucky you get that! Lol MPG's be damned. __________________ 2001 ws6, 40k miles, Ls3 416 stroker, short block built by PER the rest by me. LPE Ls3 heads milled to 12-1 comp, FAST 102, NW 102, kooks 2", dual DMH cutouts, Magnaflow C/B, BTR cam + springs. Full UMI suspension.

12-08-2012, 01:03 PM	#3
rsboyz Drives: 2012 RS Camaro Join Date: Dec 2012 Location: warrenton nc Posts: 4	i have a 2012 RS with magnaflow x pipe.. what else can i do to try and give my car a better sound? What air filter is best?

12-08-2012, 04:10 PM	#9
Apex Motorsports Drives: 2000 Camaro SS Join Date: Feb 2010 Location: Louisville, Ky. Posts: 25,165	When this happens it is usually the result of a suddenly heavier right foot. This seems to be another side effect of new mods.

12-08-2012, 08:56 PM	#10
BLACK10 Drives: 2010 CAMARO. 10.04@133mph, 1.4 60' Join Date: Jul 2009 Location: Lafayette, Louisiana Posts: 4,585	Tune!

12-08-2012, 10:52 PM	#11
D.HOOD Drives: 2011 Camaro SS Join Date: Oct 2012 Location: Charlotte, NC Posts: 60 View My Garage	I'm trying to resist to the tune as I'm trying to hold on to my warranty!! We shall see tho! __________________

12-12-2012, 05:41 PM	#13
LSR SAL Drives: faster than dirt... Join Date: Jun 2012 Location: Valdosta,GA Posts: 73	Most likely you're enjoying the intake a little too much . A tune would do wonders for drive ability and help mpg. After your warranty is up feel free to give me a call and ill give you a sweet discount!

12-12-2012, 06:03 PM	#14
litle88 V8 Lounge member #2 Drives: 2001 Ws6 Join Date: Sep 2009 Location: Burbank,IL Posts: 6,373	Warrantys be damned! Your just gonna start breaking stuff lol. Might as well ditch it and start upgrading to better parts lol. __________________ 2001 ws6, 40k miles, Ls3 416 stroker, short block built by PER the rest by me. LPE Ls3 heads milled to 12-1 comp, FAST 102, NW 102, kooks 2", dual DMH cutouts, Magnaflow C/B, BTR cam + springs. Full UMI suspension.