Issues after installing cold air intake

samjlee27 · 04-01-2019, 07:09 AM

I've installed K&N Cold air intake (63-3092) and since then I've noticed several issues pop up that were not there prior to install.

1.) Really bad rev hang, if I rev the engine in first or reverse it will hold at like 2-3k RPM's. If I rev it up while clutched in or in neutral, the revs will drop very very slowly.

2.) Power loss, I've noticed that the car feels far more sluggish and this was evident when I did a 40 roll with a bud's Focus ST and I was neck to neck with him rather than flying past him like I used to.

3.) Radiator Fan comes on randomly at full speed every once in awhile.

Any ideas as to a possible fix for these issues?

mrgoodbytes · 04-01-2019, 07:47 AM

I have not installed a cold air intake onto a fuel injected engine, so I do not have any first hand experience with this.

However, with your symptoms it sounds like you have a vacuum leak (false air) entering the system like an intake gasket leak or a vacuum hose not connected properly. This would typically cause the revs to hang.

Otherwise, you will need a tune. But others may be able to chime in here if that is neccesary.

MP3BOOSTED · 04-01-2019, 07:51 AM

did you get any codes? i've seen where people didn't install it correctly like on the throttle body or MAF sensor, recheck and go from there.

Juiced1 · 04-01-2019, 07:56 AM

I would check for leaks first. Make sure all your fittings are secure and tight.

SJFGTO · 04-01-2019, 10:29 AM

Vacuum leak or your filter is over oiled.

samjlee27 · 04-01-2019, 11:31 AM

No codes, have unplugged and replugged MAF sensor multiple times. Will check again for any leaks

TJay74 · 04-02-2019, 07:53 AM

Did you disconnect the negative battery terminal before you unplugged the MAF sensor?

samjlee27 · 04-02-2019, 08:22 AM

I did not, thinking back this might of been my dumb mistake.

Umbriel · 04-02-2019, 09:01 AM

Quote:

Originally Posted by samjlee27

I did not, thinking back this might of been my dumb mistake.

I highly doubt it is that I didn't unplug mine either, didn't see any reason to. Sounds like you have a vacuum leak somewhere and you are getting unmetered air into the engine.

kropscamaro16 · 04-02-2019, 01:22 PM

get a tune a cold air intake isnt going to do much alone

TJay74 · 04-02-2019, 02:33 PM

Quote:

Originally Posted by Umbriel

I highly doubt it is that I didn't unplug mine either, didn't see any reason to. Sounds like you have a vacuum leak somewhere and you are getting unmetered air into the engine.

Actually it can, on the 6th gen cars there are several modules that stay online and active. The MAF can trip errors if unplugged while the ECM still has power.

I never used to pull the battery, but now I do on the 6th gen due to random errors when sensors are unplugged while the battery is still connected.

F1FTY · 04-02-2019, 02:34 PM

Check your throttle body bolts/gasket.

samjlee27 · 04-03-2019, 07:16 AM

@Tjay74 how do I check if it is the MAF sensor? And if so, how can I resolve it? I have checked for any leaks, tightened all my bolts but the problem still persists

TJay74 · 04-03-2019, 08:39 PM

Cant really check it unless you have something like HP Tuners, otherwise you can have the auto parts store check for codes.

Only other option is to put the OEM air kit back into the car.

04-01-2019, 07:09 AM	#1
samjlee27 Drives: Summit White 2018 Camaro 1SS M6 Join Date: Jul 2018 Location: Fairfax, VA Posts: 65	Issues after installing cold air intake I've installed K&N Cold air intake (63-3092) and since then I've noticed several issues pop up that were not there prior to install. 1.) Really bad rev hang, if I rev the engine in first or reverse it will hold at like 2-3k RPM's. If I rev it up while clutched in or in neutral, the revs will drop very very slowly. 2.) Power loss, I've noticed that the car feels far more sluggish and this was evident when I did a 40 roll with a bud's Focus ST and I was neck to neck with him rather than flying past him like I used to. 3.) Radiator Fan comes on randomly at full speed every once in awhile. Any ideas as to a possible fix for these issues?

04-01-2019, 07:51 AM	#3
MP3BOOSTED Drives: 2017 Camaro SS 1LE (F1A-94 FBO H/C) Join Date: Jun 2017 Location: San Antonio Texas Posts: 843	did you get any codes? i've seen where people didn't install it correctly like on the throttle body or MAF sensor, recheck and go from there. __________________ Performance Mods: F1A-94, DSX Flex Fuel Kit, MSD Spark Plug Wires, KOOK 2" off road headers, MBRP Race catback exhaust, Pray Performance Custom Boost Cam, Rocker Arm Trunion Upgrade Kit, 7.850" Hardened Chromemoly Length Pushrods and Johnson Racing 2110R Lifters, TSP CNC'd Heads, Ported MSD intake manifold, 103mm Katech Throttle body, Forged Pistons/Rods, RPM Meth kit, DSX Aux Fuel system, AEM Failsafe and banks gauge, LT4 HPFP, LT4 injectors, BMR motor mounts, Hurst Short Throw, Manley SS exhaust valves Videos of my car? Check here: https://www.youtube.com/channel/UCNi...Qy1OL4NVGlPogw

04-01-2019, 10:29 AM	#5
SJFGTO Oh Oh it's Friday Night! Drives: 2018 ZL1 1LE Nightfall Gray Join Date: Jan 2018 Location: Walton Woods Posts: 1,061	Vacuum leak or your filter is over oiled. __________________ 2018 Camaro ZL1 1LE NFG; ARH 2” headers, catless mids, ARH full exhaust, Lingenfelter 18% lower pulley, ATI Harmonic Balancer, Roto-fab CAI, EE-catch can, TM ported TB, NX Lid, BMR strut tower brace. Aeroforce dual pod interceptor gauges. Tuned by Vengeance Racing!!! 644 HP @ 6250 rpm / 689 trq @ 3660 rpm Four that wanna own me Two that wanna stone me One says she's a friend of mine...

04-02-2019, 07:53 AM	#7
TJay74 Drives: 17 Camaro SS 1LE & 16 Sierra AT CC Join Date: Nov 2016 Location: Norman, OK Posts: 2,424	Did you disconnect the negative battery terminal before you unplugged the MAF sensor? __________________ 2019 Corvette Z06 2LZ A8 - Halltech CAI, AWE non-catted X-pipe, Mamo V2 ported TB 592rwhp, bone stock 566rwhp 2017 Camaro SS 1LE - Procharger D1SC w/ Tial 2" BOV & Race intercooler / ARH full length catless headers / Alky meth injection system - 650rwhp on conservative tune SOLD

04-02-2019, 01:22 PM	#10
kropscamaro16 Drives: 2016 1ss camaro Join Date: Feb 2016 Location: 909 Posts: 9,817	get a tune a cold air intake isnt going to do much alone __________________ 16 1SS NIGHTFALL GRAY METALLIC WITH NPP #BECAUSERACECAR #SAVETHEMANUALS

04-01-2019, 07:47 AM	#2
mrgoodbytes Drives: '18 2SS/EU (+Recaros) M6 Red Hot Join Date: Nov 2018 Location: Sweden Posts: 260	I have not installed a cold air intake onto a fuel injected engine, so I do not have any first hand experience with this. However, with your symptoms it sounds like you have a vacuum leak (false air) entering the system like an intake gasket leak or a vacuum hose not connected properly. This would typically cause the revs to hang. Otherwise, you will need a tune. But others may be able to chime in here if that is neccesary.

04-01-2019, 07:56 AM	#4
Juiced1 Account Suspended Drives: 2012 2SS CAMARO 45th Join Date: Apr 2011 Location: St. Charles, IL Posts: 18,663	I would check for leaks first. Make sure all your fittings are secure and tight.

04-01-2019, 11:31 AM	#6
samjlee27 Drives: Summit White 2018 Camaro 1SS M6 Join Date: Jul 2018 Location: Fairfax, VA Posts: 65	No codes, have unplugged and replugged MAF sensor multiple times. Will check again for any leaks

04-02-2019, 08:22 AM	#8
samjlee27 Drives: Summit White 2018 Camaro 1SS M6 Join Date: Jul 2018 Location: Fairfax, VA Posts: 65	I did not, thinking back this might of been my dumb mistake.

04-02-2019, 02:34 PM	#12
F1FTY Drives: 2018 ZL1 Join Date: Oct 2016 Location: At the Dealership Posts: 1,019 View My Garage	Check your throttle body bolts/gasket. __________________ It's been fun, done with GM. 2018 Camaro ZL1 (SOLD) - Blown Airbags 2017 Camaro SS F1FTY Member Journal (SOLD) - Bad Motor

04-03-2019, 07:16 AM	#13
samjlee27 Drives: Summit White 2018 Camaro 1SS M6 Join Date: Jul 2018 Location: Fairfax, VA Posts: 65	@Tjay74 how do I check if it is the MAF sensor? And if so, how can I resolve it? I have checked for any leaks, tightened all my bolts but the problem still persists

04-03-2019, 08:39 PM	#14
TJay74 Drives: 17 Camaro SS 1LE & 16 Sierra AT CC Join Date: Nov 2016 Location: Norman, OK Posts: 2,424	Cant really check it unless you have something like HP Tuners, otherwise you can have the auto parts store check for codes. Only other option is to put the OEM air kit back into the car. __________________ 2019 Corvette Z06 2LZ A8 - Halltech CAI, AWE non-catted X-pipe, Mamo V2 ported TB 592rwhp, bone stock 566rwhp 2017 Camaro SS 1LE - Procharger D1SC w/ Tial 2" BOV & Race intercooler / ARH full length catless headers / Alky meth injection system - 650rwhp on conservative tune SOLD

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