TWIN TURBO LS3 2010 FUEL SMELL INSIDE CAR? - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

Twin2010 · 02-04-2014, 12:47 PM

I have a 2010 ss twin turbo with 3 inch magna flow exhaust. It has a squash fuel system with the teflon line to eliminate fuel odor. When i am cruising the car it seems i always get a fuel odor inside, even when i have tha air on recirc. I was curious if anyone else ran into this same issue? Im not sure if it is because i dont have cats or what. If its from that i am almost thinking of putting high flow cats on it with electric cutoutsto activate under boost. I cant stand any kind of fuel smell inside while driving. Thanks for any input

kpwalls06 · 02-04-2014, 01:07 PM

When you say fuel odor do you mean it smells like gas when you fill your car, or does it smell like the car is running rich? Each smell would likely mean a separate issue with the fuel, I would think.

Twin2010 · 02-04-2014, 01:15 PM

Ya i was just thinking about that. I think its almost a raw fuel smell. I cant see anywhere the fuel system is leaking. Im not sure if theres a way to smoke test the system to see if theres a leak somewhere

CyberPredator · 02-04-2014, 01:18 PM

Raw fuel, I would say check all connections. Rub your finger on each connection and feel for moisture or dirt build up (smell too). If it's burnt fuel, I would say check for exhaust leaks and route crank case ventilation to somewhere further from the cabin (if open).

kpwalls06 · 02-04-2014, 01:20 PM

If the fuel is leaking, there's a decent chance it's hitting somewhere on the undercarriage of the car and evaporating due to the heat. The evaporation releases the vapors, causing that smell. I couldn't really offer advice on smoke testing, or other ways to leak test your system, but it would be a good place to start if the smell is more like raw fuel.

Camper · 02-04-2014, 02:10 PM

id start carrying a fire extinguisher TBH

Chris82xx · 02-04-2014, 02:43 PM

Was the pump installed by dropping the tank or by cutting a whole under the back seat?

casper sc/1ss/rs · 02-04-2014, 02:48 PM

Quote:

Originally Posted by Camper

id start carrying a fire extinguisher TBH

Rockit_z28 · 02-04-2014, 03:01 PM

Check for leaks smell around the fuel pressure regulator as well.

Twin2010 · 02-04-2014, 03:41 PM

I pulled the tank out of the car to install everything

camarostar2010 · 02-04-2014, 03:51 PM

assuming all is tight..then the smell is from no cats and running slightly rich...which is good overall. U can ask your tuner to lean out a lil..and the rest is basically "the way it is". Also u might get a lil vapor smell after shutting off the engine in really hot environments. My experience. I also checked for leaks, but found none. Keep us posted.

Twin2010 · 02-04-2014, 04:15 PM

Its weird i get the smell just cruisin gdown the highway and the air fuel is 14.5-15.0 cruising down the highway

DKT · 02-04-2014, 04:35 PM

I had a magnafuel fuel pressure gauge blow apart and starting dumping fuel out of my rail. I only noticed a slight odor nothing major, it wasn't until i realized i went through a 1/8 tank driving across town did i know something was wrong.

Chris82xx · 02-04-2014, 09:33 PM

You upgraded to the Squash which means that you probably upgraded your injectors too. Are they all sitting correctly? If not, you could be blowing fuel out from one.

02-04-2014, 12:47 PM	#1
Twin2010 Drives: 2010 twin turbo ss Join Date: Nov 2012 Location: Oklahoma City Posts: 306	TWIN TURBO LS3 2010 FUEL SMELL INSIDE CAR? I have a 2010 ss twin turbo with 3 inch magna flow exhaust. It has a squash fuel system with the teflon line to eliminate fuel odor. When i am cruising the car it seems i always get a fuel odor inside, even when i have tha air on recirc. I was curious if anyone else ran into this same issue? Im not sure if it is because i dont have cats or what. If its from that i am almost thinking of putting high flow cats on it with electric cutoutsto activate under boost. I cant stand any kind of fuel smell inside while driving. Thanks for any input

02-04-2014, 01:18 PM	#4
CyberPredator 50 Shades of Prey Drives: TT/SS Join Date: Oct 2010 Location: Between 10 and 20 PSI Posts: 777	Raw fuel, I would say check all connections. Rub your finger on each connection and feel for moisture or dirt build up (smell too). If it's burnt fuel, I would say check for exhaust leaks and route crank case ventilation to somewhere further from the cabin (if open). __________________ Futral Motorsports built and tuned

02-04-2014, 02:43 PM	#7
Chris82xx Make your peace with God! Drives: 2011 Camaro SS/RS M6 Convertible Join Date: Dec 2011 Location: Dirty Jersey Posts: 1,595	Was the pump installed by dropping the tank or by cutting a whole under the back seat? __________________ ECS base supercharger (NOVI 1500SL), ECS AlKY control kit, 92mm TB, ARH 1 7/8" LT's non-catted, Borla 3" exhaust, ID850 injectors, Squash fuel system, ECS Big Blower Cam, MGW short throw shifter, DSS 1000hp axles, LGW differential cover, billet caps, Tech AFX heater hoses, Pedders differential bushings, Eaton TrueTrac differential, PRC dual valve springs, Katech C5R timing chain, ATI balancer, Meilings oil pump, Pfadt Trailing Arms, Pfadt Tie Rods, Pfadt Sway Bars, Pfadt End Links, DSS Aluminum Driveshaft 811RWHP/719RWTQ UNDER MAJOR OVERHAUL!!

02-04-2014, 03:01 PM	#9
Rockit_z28 www.1baddogracing.com Drives: 2010 IOM 2SS/RS Auto Join Date: Apr 2011 Location: Indian Land, SC Posts: 998 View My Garage	Check for leaks smell around the fuel pressure regulator as well. __________________ 2010 Camaro 2SS/RS Aqua Blue Metalllic (bolt-ons) 2020 Camaro 2SS/RS Satin Steel Metallic - Shock and Steel Edition 1 of 98 - A10 (bolt-ons) 2010 Camaro 2SS/RS IOM - 1,023 RWHP 813RWTQ (Previous Paxton Record Holder: 9.82@139) Built and Tuned by Heintz Racing Go: DSS 9", RPM Trans TH400, Carlyle Racing 15" Conversion, ECS Vortech YSI-B, Fore Fuel System, ID1700, Gall Racing 427 C.I LSX, Mast 285CC Heads, HR Custom Cam Show: Custom Painted Stripes/Badges (Orange Pearl over White), Z/TA Spoiler, VFN Hood, Weld Wheels http://www.HeintzRacing.com http://www.youtube.com/user/1baddogracing

02-04-2014, 09:33 PM	#14
Chris82xx Make your peace with God! Drives: 2011 Camaro SS/RS M6 Convertible Join Date: Dec 2011 Location: Dirty Jersey Posts: 1,595	You upgraded to the Squash which means that you probably upgraded your injectors too. Are they all sitting correctly? If not, you could be blowing fuel out from one. __________________ ECS base supercharger (NOVI 1500SL), ECS AlKY control kit, 92mm TB, ARH 1 7/8" LT's non-catted, Borla 3" exhaust, ID850 injectors, Squash fuel system, ECS Big Blower Cam, MGW short throw shifter, DSS 1000hp axles, LGW differential cover, billet caps, Tech AFX heater hoses, Pedders differential bushings, Eaton TrueTrac differential, PRC dual valve springs, Katech C5R timing chain, ATI balancer, Meilings oil pump, Pfadt Trailing Arms, Pfadt Tie Rods, Pfadt Sway Bars, Pfadt End Links, DSS Aluminum Driveshaft 811RWHP/719RWTQ UNDER MAJOR OVERHAUL!!

02-04-2014, 01:07 PM	#2
kpwalls06 Cory Drives: 2010 Camaro 2SS/RS M6; Join Date: Nov 2009 Location: Carrollton, Tx Posts: 299 View My Garage	When you say fuel odor do you mean it smells like gas when you fill your car, or does it smell like the car is running rich? Each smell would likely mean a separate issue with the fuel, I would think.

02-04-2014, 01:15 PM	#3
Twin2010 Drives: 2010 twin turbo ss Join Date: Nov 2012 Location: Oklahoma City Posts: 306	Ya i was just thinking about that. I think its almost a raw fuel smell. I cant see anywhere the fuel system is leaking. Im not sure if theres a way to smoke test the system to see if theres a leak somewhere

02-04-2014, 01:20 PM	#5
kpwalls06 Cory Drives: 2010 Camaro 2SS/RS M6; Join Date: Nov 2009 Location: Carrollton, Tx Posts: 299 View My Garage	If the fuel is leaking, there's a decent chance it's hitting somewhere on the undercarriage of the car and evaporating due to the heat. The evaporation releases the vapors, causing that smell. I couldn't really offer advice on smoke testing, or other ways to leak test your system, but it would be a good place to start if the smell is more like raw fuel.

02-04-2014, 02:10 PM	#6
Camper Banned Drives: 10' 2SS LS3 M6 Join Date: May 2012 Location: Phoenix,AZ Posts: 1,370	id start carrying a fire extinguisher TBH

02-04-2014, 03:41 PM	#10
Twin2010 Drives: 2010 twin turbo ss Join Date: Nov 2012 Location: Oklahoma City Posts: 306	I pulled the tank out of the car to install everything

02-04-2014, 03:51 PM	#11
camarostar2010 Drives: 2011 SS Join Date: Nov 2011 Location: new jersey Posts: 379	assuming all is tight..then the smell is from no cats and running slightly rich...which is good overall. U can ask your tuner to lean out a lil..and the rest is basically "the way it is". Also u might get a lil vapor smell after shutting off the engine in really hot environments. My experience. I also checked for leaks, but found none. Keep us posted.

02-04-2014, 04:15 PM	#12
Twin2010 Drives: 2010 twin turbo ss Join Date: Nov 2012 Location: Oklahoma City Posts: 306	Its weird i get the smell just cruisin gdown the highway and the air fuel is 14.5-15.0 cruising down the highway

02-04-2014, 04:35 PM	#13
DKT Drives: 2013 Camaro 1LE Join Date: Nov 2013 Location: NE/IA Posts: 222	I had a magnafuel fuel pressure gauge blow apart and starting dumping fuel out of my rail. I only noticed a slight odor nothing major, it wasn't until i realized i went through a 1/8 tank driving across town did i know something was wrong.