Problem 1:
Hey guys I just installed my F-Sport intake and it was working fine the whole night until the next day I turned on my car and the VSC and check light is on. Didn't know what to do so I just reset my ECU by taking the negative charge off of the battery. Turned it on and everything worked fine. Went to work and left the car alone for a good 4 hours. Turned it on again and BAM, VSC and check light on again. Did the same thing and it turned off again. Anyone know what could be the problem? I tightened everything I could on the installation and checked for leaks. Everything looked fine.

Problem 2:
Whenever I start the engine after a 20+ minute wait time it seems like it takes much longer to start up. Like its trying to get air or something. I would hear the clicking noise to start the car but it would last much longer than usual.
Any help would be good thanks!

 

Sounds like you still have a leak somewhere.

 

I would take the intake back off and put the OEM on. If the you still have issues, take it to the dealer. If it runs fine, reinstall the aftermarket intake, be sure to connect everything.

 

MAF sensor busted?

 

The tube is tricky to align well atleast mine was. I was paranoid that I would have a leak for about a week.

 

GET YOUR CODES!!!


we can guess all day, but if you want real answers get the codes read.

 

If you have a local autozone or something where the codes are read free, do that.

But 99.9% of the time this is either- you forgot to plug the MAF back up correctly or you have a leak someplace (either end of the tube or you left a hose off)... all of which should be fairly visually obvious if you check it over.


BTW- no need to disconnect the battery to reset the lights- just pull the fuse.

 

Probably one of the tube is not tighten correctly , check it out and tight it, problem solve ....

 

I had the check engine light and my car stalled immediately after I after my F-sport intake. Then I started my car again after that, and it worked out fine. For me, it was the computer learning the new Air Mapping.

As other had mention, it looks like you get an air leak somewhere or the MAF Sensor is busted. I had this same problem when I installed my cold air intake on my Corolla. One week after installing it, the Check Engine came on. It turned out that the seal for the MAF Sensor is loose and caused a big air leak.

Btw, do get the Code reading... it'll make troubleshooting much easier as other said.

 

try to see if its a leak in your installation or the MAF sensor itself that is damaged.

 

Thanks for the replies guys. Apparently my intake wasn't installed tight enough. So I redid it and tightened everything again. So far everything seems fine on that end. I don't know if this is a big problem but whenever I start the car from a ~10min break it takes longer than normal to start up. And it seems like its inconsistent.

 

^^^ new intake will take a bit cuz the ECU needs to get used to it.

JOE-Z instructions: Disconnect NEGATIVE side of the battery for about 20 minutes so ECU can reset... then when you have everything back together, let car idle for 5-10 minutes. Will take a month before the ECU can FULLY evaluate the new intake / air flow

 

A month?? What if I don't drive it only about three times in two weeks?

 

I know what the directions say but my advice is don't touch the battery.

The difference in airflow isn't really much, and your MAF will read the amount of air correctly immediately... that's what it's there for.

Your ECU is always learning, I can't think of any good reason to disconnect the battery other than if you just walked across a carpet and are worried about shorting something with static electricity.

I've installed literally dozens of intakes on different cars, including the F-sport on the IS350, and never did anything to the battery when doing it. I just insured I touched something grounded before touching anything electrical.

And even if you really really want to reset your ECU for some odd reason, it's way easier to pull the fuse for it than disconnect the battery.

 

I agree. I forgot to tighten the clamps to secure the tube coming out of the intake box and that threw the VSC and CEL.