CAI turned on CEL after reinstallation, but never came on the first time I installe

cKurmaro · 05-12-2019, 10:20 PM

As the title says, I’m puzzled on why this could be. The first time we installed it everything was fine and worked like a charm, but after reinstalling it the code just suddenly popped up. We installed everything correctly and made sure everything’s nice and tight.

I didn’t have time to clean the MAF sensor, unplug the battery and drive around again yet. I also don’t know what the code is (yet).

Is the CAI an issue to the engine now? Really confused on why the CEL turned on after being fine the first time.

acidronin · 05-13-2019, 07:23 AM

If you disconnected the MAF for the install it will trigger the CEL for a short time. drive it around for a few miles and see if it goes out.

zts1986 · 05-13-2019, 07:44 AM

When disconnecting sensors like the MAF sensor, put the car to "sleep" first and you will avoid this.

1. Open the hood
2. Close the hood latch (cover it and make yourself a note to unlatch it before shutting the hood!)
3. Unplug anything inside the car (camera, radar detector, OBDII scanner)
4. Shut the car doors and lock the car
5. Put the key fob far away from the car (20+ feet)
6. Wait 15 minutes
7. Work away

cooper1965 · 05-13-2019, 07:58 AM

Quote:

Originally Posted by zts1986

When disconnecting sensors like the MAF sensor, put the car to "sleep" first and you will avoid this.

1. Open the hood
2. Close the hood latch (cover it and make yourself a note to unlatch it before shutting the hood!)
3. Unplug anything inside the car (camera, radar detector, OBDII scanner)
4. Shut the car doors and lock the car
5. Put the key fob far away from the car (20+ feet)
6. Wait 15 minutes
7. Work away

Or just loosen one 10mm nut at the trunk battery cable and slide it off.

cKurmaro · 05-13-2019, 09:59 AM

Quote:

Originally Posted by acidronin

If you disconnected the MAF for the install it will trigger the CEL for a short time. drive it around for a few miles and see if it goes out.

I’ve driven about 20 miles after the light came on and it didn’t go away.

cKurmaro · 05-13-2019, 10:00 AM

Quote:

Originally Posted by cooper1965

Or just loosen one 10mm nut at the trunk battery cable and slide it off.

So disconnect the battery then start working on the intake?

cooper1965 · 05-13-2019, 10:08 AM

Quote:

Originally Posted by cKurmaro

So disconnect the battery then start working on the intake?

Yep, just loosen the one nut in the trunk, slide cable off, do work, slide cable back on and tighten nut.

zts1986 · 05-13-2019, 12:31 PM

Quote:

Originally Posted by cooper1965

Or just loosen one 10mm nut at the trunk battery cable and slide it off.

Perhaps it is different on this vehicle, but for every previous car of mine that reset all of my preset radio stations. Not interested. This is a simple process that allows you go grab some coffee or have a beer while you wait that 15 minutes, and prepare for the job at hand.

cooper1965 · 05-13-2019, 01:34 PM

Quote:

Originally Posted by zts1986

Perhaps it is different on this vehicle, but for every previous car of mine that reset all of my preset radio stations. Not interested. This is a simple process that allows you go grab some coffee or have a beer while you wait that 15 minutes, and prepare for the job at hand.

You won't loose your radio presets... lol

Unless your really,.. really... slow or something.. I'm talking like 2-3 months slow..
Some may feel inconvenienced by "re indexing" window position though. BUT, It's as simple as: roll down, roll up window, done.

zts1986 · 05-13-2019, 02:24 PM

Quote:

Originally Posted by cooper1965

You won't loose your radio presets... lol

Unless your really,.. really... slow or something.. I'm talking like 2-3 months slow..
Some may feel inconvenienced by "re indexing" window position though. BUT, It's as simple as: roll down, roll up window, done.

Huh. Well, the more you learn...

wookwook · 05-13-2019, 02:40 PM

this may be a help here and the other cai post. you should really have a scan tool if your are going to mod. I have the ODB link MX w/blue tooth. Its a good reader and re-setter and it will tell you in fact that you have a permanent DTC, diagnostic trouble code, as referred to also. BUT where I am going is check your MAF flow g/s, its in the free Torque app. I destroyed my MAF when the cable just popped off while running the engine. it had 0 reading. check yours and go from there. You cannot turn off a permanent DTC until you fix the problem. Some will reply that you "can disable the alert" but the dtc will still exist and be readable by the DOT at sticker time. Plus your are into a $700 solution to just shut off a CEL. I honestly do not know what people do at emissions inspection time, like replace all bolt ons with the OEM stuff for the day? Maybe some one can educate me on that part. GM really moved the bar way up where us driveway enthusiasts can't do much -legally- i am afraid.

05-12-2019, 10:20 PM	#1
cKurmaro kurmaro Drives: ‘17 Krypton Green 1LT Join Date: Apr 2019 Location: New Jersey Posts: 21	CAI turned on CEL after reinstallation, but never came on the first time I installe As the title says, I’m puzzled on why this could be. The first time we installed it everything was fine and worked like a charm, but after reinstalling it the code just suddenly popped up. We installed everything correctly and made sure everything’s nice and tight. I didn’t have time to clean the MAF sensor, unplug the battery and drive around again yet. I also don’t know what the code is (yet). Is the CAI an issue to the engine now? Really confused on why the CEL turned on after being fine the first time.

05-13-2019, 07:23 AM	#2
acidronin Drives: 2017 camaro 2.0t Join Date: May 2018 Location: Delaware Posts: 62	If you disconnected the MAF for the install it will trigger the CEL for a short time. drive it around for a few miles and see if it goes out.

05-13-2019, 07:44 AM	#3
zts1986 Account Suspended Drives: 2019 Chevrolet Camaro 1LT 2.0T Join Date: Mar 2019 Location: Buffalo, NY Posts: 330	When disconnecting sensors like the MAF sensor, put the car to "sleep" first and you will avoid this. 1. Open the hood 2. Close the hood latch (cover it and make yourself a note to unlatch it before shutting the hood!) 3. Unplug anything inside the car (camera, radar detector, OBDII scanner) 4. Shut the car doors and lock the car 5. Put the key fob far away from the car (20+ feet) 6. Wait 15 minutes 7. Work away

05-13-2019, 02:40 PM	#11
wookwook Drives: 18 Camaro LS M6 Join Date: Apr 2019 Location: NH Posts: 698	this may be a help here and the other cai post. you should really have a scan tool if your are going to mod. I have the ODB link MX w/blue tooth. Its a good reader and re-setter and it will tell you in fact that you have a permanent DTC, diagnostic trouble code, as referred to also. BUT where I am going is check your MAF flow g/s, its in the free Torque app. I destroyed my MAF when the cable just popped off while running the engine. it had 0 reading. check yours and go from there. You cannot turn off a permanent DTC until you fix the problem. Some will reply that you "can disable the alert" but the dtc will still exist and be readable by the DOT at sticker time. Plus your are into a $700 solution to just shut off a CEL. I honestly do not know what people do at emissions inspection time, like replace all bolt ons with the OEM stuff for the day? Maybe some one can educate me on that part. GM really moved the bar way up where us driveway enthusiasts can't do much -legally- i am afraid.

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