Intake backfire after z28 cai install - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

15rs/ss · 10-21-2015, 08:12 PM

So i installed my new gm z28 cold air on my l99 2015 (very easy i might add) go and fire it up and let it idle for a few seconds and snapped throttle a couple times and BOOM a single backfire thru the intake. scared the you no what out of me. Took the car for a ride and seems ok. Any ideas why it did this?

Car is bone stock otherwise

EFI · 10-22-2015, 09:08 AM

Probably needed time for the ECM trims to catchup to the new intake, so you were probably running a bit lean. As long as there are no air leaks you are fine.

15rs/ss · 10-22-2015, 12:53 PM

All tight. drove a little today. love the sound and power is getting better.

10-21-2015, 08:12 PM	#1
15rs/ss Drives: 2015 Yellow 2SS LT Z28 cai tune Join Date: Aug 2015 Location: Tallmadge,Ohio Posts: 208	Intake backfire after z28 cai install So i installed my new gm z28 cold air on my l99 2015 (very easy i might add) go and fire it up and let it idle for a few seconds and snapped throttle a couple times and BOOM a single backfire thru the intake. scared the you no what out of me. Took the car for a ride and seems ok. Any ideas why it did this? Car is bone stock otherwise Last edited by 15rs/ss; 10-21-2015 at 08:24 PM.

10-22-2015, 09:08 AM	#2
EFI Drives: something faster than you Join Date: Aug 2010 Location: where dem hoes be Posts: 315	Probably needed time for the ECM trims to catchup to the new intake, so you were probably running a bit lean. As long as there are no air leaks you are fine.

10-22-2015, 12:53 PM	#3
15rs/ss Drives: 2015 Yellow 2SS LT Z28 cai tune Join Date: Aug 2015 Location: Tallmadge,Ohio Posts: 208	All tight. drove a little today. love the sound and power is getting better.