[F1FTY]

Originally Posted by Burly

Mechanics 101: You should have disconnected the battery before you touched anything. Need to have it disconnected for atleast 10-15mins. Hope it works out for you.

Followed Lethal's video

[Burly]

Originally Posted by F1FTY

Followed Lethal's video

I watched his install video, love all his videos, and he mentioned in the beginning that if your "crazy smart" to disconnect the battery. Dad taught taught me long ago, when dealing with anything electrical, disconnect battery.

You possibly zapped the MAF or damaged it in some other way. Can you read any codes?

[RCF]

GM's instructions say specifically not to disconnect the MAF sensor harness, but to remove the two screws and pull out the sensor and set it aside. As I understand it, disconnecting it causes a fault in the MAF sensor signal and sets a code and the CEL.

Also no mention of disconnecting the battery, but that definitely won't hurt.

[LS6-M22]

Originally Posted by RCF

GM's instructions say specifically not to disconnect the MAF sensor harness, but to remove the two screws and pull out the sensor and set it aside. As I understand it, disconnecting it causes a fault in the MAF sensor signal and sets a code and the CEL.

Also no mention of disconnecting the battery, but that definitely won't hurt.

Ditto to the above. I'm installing mine tomorrow. I WILL disconnect my battery and WILL NOT disconnect my MAF. In Lethals video he disconnected the MAF which is contrary to the instructions

[F1FTY]

Originally Posted by RCF

GM's instructions say specifically not to disconnect the MAF sensor harness, but to remove the two screws and pull out the sensor and set it aside. As I understand it, disconnecting it causes a fault in the MAF sensor signal and sets a code and the CEL.

Also no mention of disconnecting the battery, but that definitely won't hurt.

This too, I followed the GM instructions that came with the kit to the T.

Did not disconnect the MAF...no CELs..yet.

Going to inspect the MAF soon and see if it's loose.

[nbryant]

Originally Posted by Hyper16

OK. Another scenario.

I buy the car in Maryland (CARB state) and then move to Virginia (non-CARB state). Then I go to a dealer in VA and have the intake installed and, since it is now legal, have them tune the ECM. What happens? Does it work/install properly?

Even though GM knows my car was shipped to and sold from Maryland, and my VIN is flagged as CARB, how do they know whether or not I am a Virginia resident now? I kind of have a feeling that 'won't work' means that the dealers in CARB states cannot flash the ECM. Either because it is illegal or because GM limits their software. Expert/dealership confirmation or correction of my theory would be GREATLY appreciated.

I believe it's all about where the car is registered, not your VIN and where it was sold. Being a VA resident it should be fine.

So my question would be for those CARB states, what does installing it do to the warranty if it can not be tuned? Void it? If not does that mean we can install any aftermarket version we want without impacting the warranty?

[RCF]

Originally Posted by F1FTY

MAF not loose. TB not loose. Filter not loose. Hose not loose.

Took everything back apart and lost one of the TB bolts under the motor.

I waited months for this piece of shit!

I understand your frustration - been there many times, but something was/is obviously not right...

Is it doing this at idle? More info and maybe even some pics might help to diagnose the issue(s).

[F1FTY]

Originally Posted by RCF

I understand your frustration - been there many times, but something was/is obviously not right...

Is it doing this at idle? More info and maybe even some pics might help to diagnose the issue(s).

You're right

I tightened down the TB more and idle stabilized slightly, but then started breaking up. So I revved it and the RPMs then stuck at 2200. Clutch in didn't stop it so I shut the car off. Figuring it might be the whistle stopper installed wrong, I went back to the TB and checked the instructions for arrangement. I had it on correctly but at about that point, I lost one of the longer TB bolts.

I've checked the alignment between the mark on the intake box with the filter arrow and the mark on the TB tubing. It's all lined up. I've checked that more times than I can remember now.

Also went back and checked the MAF. It's installed in the right direction and the bolts were tightened down. No wires loose and the plug was connected and clicked in.

All hose clamps tightened down as well.

I'm out of ideas at this point and with the TB missing the bolt I've pulled the intake off the car.

This is the first time I've had an issue with a cold air intake.

[RCF]

Your earlier description along with tightening the throttle body making it start to smooth out sounds like you have an airleak downstream (between it and the motor) causing it to run lean. I'd make sure that BOTH gasket are installed properly, not pinched, etc., and that the sound tube in installed properly, etc.

[F1FTY]

Originally Posted by RCF

Your earlier description along with tightening the throttle body making it start to smooth out sounds like you have an airleak downstream (between it and the motor) causing it to run lean. I'd make sure that BOTH gasket are installed properly, not pinched, etc., and that the sound tube in installed properly, etc.

Thank you. Will go try that

[RCF]

Downstream of the MAF sensor I meant to say... basically motor is getting air that is not measured and therefore running lean, at least what it sounds like to me. Hope that helps and you get it figured out!

[F1FTY]

Originally Posted by RCF

Downstream of the MAF sensor I meant to say... basically motor is getting air that is not measured and therefore running lean, at least what it sounds like to me. Hope that helps and you get it figured out!

Makes sense. Running to Home Depot tomorrow to get a similar bolt for the TB and some worm clamps for the PCV and MSE just to get them tight and try again.

[F1FTY]

Update:

Car still has a rough idle and throttle hangs at 2200 rpm. Here are photos of all i've done to try to eliminate leaks:

worm clamp on the MSE:


worm clamp on the PCV:


MAF oriented correctly, fully seated and everything tight:


MAF/alignment of filter to hole on box and MAF tube:


TB with spacer installed correctly all tightened down fully seated:


Another alignment photo:


Orientation of the MAF sensor to the MSE, spacing of tube to hose and filter:


Another shot:


Air filter in the box with the lid removed to show orientation:




I'm to the point of frustration now where i'm just tired of dealing with it. If anyone can help out, it's greatly appreciated. My next move is to have the car towed.

[SuperSound]

Fifty have you tried reverting to stock yet? That should help isolate the trouble if it's something up with the MAF.