okay so I bought a BOMZ racing CAI and After i installed it about like 50 miles the check engine light came up and i have done alot of research to what the cause could be but no luck. Until i went to advance auto parts and got my car scanned the code is PO101 dont know what it means any one can help me out to what i can do thanx.

 

MAF circuit range/Performance Problem

Two things to try
1) Disconnect battery, wait for it to reset, let idle for at least 15 mins(till car is completely warm in my experience)

2) Try cleaning out the MAF with MAF sensor cleaner from any parts store

Does the car seem to run ok?

 

see the thing is i did do that well disconnected the battery and reset it, but it went away but after 50 miles it came on again. and MAF is mass air flow? sorry still kinda new on auto part naming. the car runs great, i can hear the air sucking sound so i amguessing its doing its job.

 

Yeah MAF is Mass Air Flow.

well if car is running fine its not anything crazy bad. Possibly try cleaning it. But if you do read the directions on the can THOROUGHLY and don't rush.

Its amazing how much people realize they can do with cars once they try isn't it?

 

What year tC do you have? And was the intake for the correct year?

Curious b/c I've seen spotty reports of the 05-06 BOMZ intakes working just fine (for those year tCs) but 07 and up have been having some issues.

Definitely start with cleaning the MAF sensor. Disconnect the battery to reset the ECU and let the car idle for 10-15 min. Pretty much everything he said.

 

oh okay and where can i get this cleaner? idk like some guy told me that my maf sensor could have gone bad, and he told me to put back my stock box on and reset it, and if cel came up again then can i take it to the dealer? i only got 44k miles on it. I just feel like it should come one. but so I have to unscrew the sensor and take it our and just rinse it with the cleaner? do i let it dry or just put it back.? do i reset it once i put it back? by disconnecting the battery?

 

my car is a 07 and i cleaned by blowing in it, but not with a cleaner. you think that can work?

 

Whoa dude... just slow down a bit. Take a breath...

MAF sensor cleaner can be bought at any generic parts store (autozone, pepboys, etc). It is specifically called MAF Sensor Cleaner.

Read the instructions on the can. You will unplug the sensor and remove it from your intake. Follow the instructions to clean it. Wait for it to dry as needed and install it into the intake again.

Then disconnect the negative of your battery for about a minute or two. Reconnect it and start your car. Let it idle for about 10-15 min (really, that long). If it stalls, that's OK, just start it again and let it continue to idle.

Then you're just going to have to drive for a while to see if it comes back. If it doesn't, great. If it does... you may actually have a problem with the MAF - sometimes they get damaged during install if you're not really careful - the sensor itself is pretty fragile.

Or you could try putting the OEM intake back on and do the ECU reset again - see if it comes back. If it comes back with the OEM intake on, you probably have a bad MAF or some other larger issue.

 

Oh ya... what I would NOT recommend doing is putting the OEM intake back on and going to the dealer to try to get it fixed under warranty (if yours is still valid based on mileage/whatever) and pretend you never installed the intake.

 

oh ok, thanks sorry just kinda in a rush, since I have to get to class. So after I do all the steps if it does come on can't i just put the OEM air box back. if the light still comes on can i take it to the dealer?

 

If you do the cleaning and reset and drive it for a bit (can take a couple days before you notice for sure) and it still comes back on you can go to the dealer - but even if putting the OEM airbox back on, that's not really a valid warranty claim. If you do that and it turns out to be a bad MAF - that means it was damaged when you did the intake install - which isn't a warranty issue.

You'd be better off taking it in with the BOMZ intake on and say "hey, just installed this and followed all the instructions - but now I'm getting a CEL, can you tell me why?" And explain to them you tried cleaning it and whatever.

 

my BOMZ intake did this on my 08. i tried cleaning the maf and reset it a bunch of times...still threw the CEL. i just took mine off and put the stock back on....

 

Ya, that's why I mentioned it up above. Sounds like there's something up with the later ones that makes them suck pretty hard.

I'd use this as an example to do the ol' "you get what you pay for" thing... but they work great on the 05-06 from what I've heard.

 

Well i cleaned it and everything and CEL is still there.. idk one of my buddies thinks u need a housing inside the air intake close to the size of the stock air box which limits the air that goes through the maf. i will put this pic to who u what it is. but what happens if i ride with the cel on?

 

Uh... I don't think your "buddy" knows what he's talking about (no offense). No such thing is ever needed for the tC (or exists, that I know of). HOWEVER... if the diameter of the piping at the MAF sensor is larger than the OEM piping, you might have a problem. I don't know what size the BOMZ piping is so I can't say that's it.

As for driving with the CEL - not much would happen really - but that doesn't mean you should do it. Thing is if you can't pinpoint the problem - it could possible throw off some other sensors and cause some other problems. Not to mention if you get another legitimate CEL for something major, you wouldn't know it b/c the light would still be on.

 

Not familiar with bomz brand but make sure i.d. of intake is the same as stock. I believe mine was 2.5". Will throw a light if any diameter as it is reading less air than what is coming out of your exhaust. I think mine read it was running lean though.. just what my problem was not necessarily yours as it may be the right size.

edit: sorry must of added shortly after ack.

 

yeah, idk but thats what he said cuz he said his car came with like a stock housing that he used it on his intake, idk here is apic but the diameter is deff bigger than the stock for sure. is there any way i can make it my self? to match the stock pipe sizing?

 

Ya, that is basically there because of what I was describing - but the "how" of it being there is just b/c that's how that particular car is designed. Ours happens to be different in that regard and not have a specific MAF sensor housing - and relies strictly on the piping.

Here's what I'm talking about... this is my engine bay with an Injen intake. If you look at the piping where the MAF sensor is installed, the Injen is actually a smaller diameter at just that spot - and the rest of the piping is larger. They did this just for this reason.



Not all intakes are like this though. The K&N for example just had smaller piping overall and didn't need to change the size around the MAF sensor.

 

I had to use Spectre part # 9405 for my tc and no cels since. Not sure how you could make that work in your setup but if you use the 2.5" sleeve thats what you need. You can't order the sleeves separately at least from Spectre. Good Luck

 

See the bomz cai diameter is all the same through the maf, so is there any specific size? can i buy like a sleeve or i guess make one? would that work?