Holy hell I'm scared...

[MSAxela]

I had a 04 MZ3 Hatch before I traded it for my MS3 and I had a few mods on it. I added a CAI and after it was installed and I drove the car for a few days it threw a CEL. The hp increase is pretty large on these cars cause the stock air box is so damn restrictive. I just let the car run with the CEL for a few days and then is went away the ECU has some sort of recognizing factor in the hp increase and has to get used to the change in power and air flow. Trust me I had it checked out when it happened and had the car up until last month, never had a problem. Let it ride all will be good, and don't be suprised if you throw one in the winter once in a while too since the colder air will also affect it in the same fassion but it will drop off after a day or 2 usually. If it lasts longer than that and you can't reset the ECU and get it to go away...worst case, take it to the dealer. Just my $.02 from what I had expierenced in the past. Good luck with it.

 

[clos561]

So it's def safe to drive in the rain?

yea it is safe jsut dont do anything outragoues in the rain like burnout and speed...jsut increases the risk of rain getting under ur hood...jsut drive like a cop is behind u (five-0)

 

[GhostMercury]

take off the negative battery terminal, press the brake and it should reset the ecu. if the cel doesnt cvome back on you are fine

 

[MM3Canuck]

I had a 04 MZ3 Hatch before I traded it for my MS3 and I had a few mods on it. I added a CAI and after it was installed and I drove the car for a few days it threw a CEL. The hp increase is pretty large on these cars cause the stock air box is so damn restrictive. I just let the car run with the CEL for a few days and then is went away the ECU has some sort of recognizing factor in the hp increase and has to get used to the change in power and air flow. Trust me I had it checked out when it happened and had the car up until last month, never had a problem. Let it ride all will be good, and don't be suprised if you throw one in the winter once in a while too since the colder air will also affect it in the same fassion but it will drop off after a day or 2 usually. If it lasts longer than that and you can't reset the ECU and get it to go away...worst case, take it to the dealer. Just my $.02 from what I had expierenced in the past. Good luck with it.

I ran my K&N Typhoon from November until now, and it never threw a CEL on me. (And i live in a harshER environment (Temps +35Celcius to -35Celcius), Ontario, Canada) Then again, the instructions tell you to have the battery disconnected during the install, which would reset the ECU. The ECU would then learn with the CAI on the car.

 

[MM3Canuck]

So it's def safe to drive in the rain?

After driving in heavy rain, open your hood, and you will see that there is almost no water under your hood. Even after going 120km/h for 2 hours in heavy rain.

But if you have a MazdaSpeed CAI, be more aware of the rain, since the CAI is right by the wheel = more rain water accumulation. Then again, the Mazdaspeed CAI comes with a Splash guard doesn't it?

 

[ZoomVT]

whaqt everyone has already said; you weill be fine.
i have had a lot of those experiences; the cel is mostly thrown cause the maf gets a drop of water and freaks out.
Your filter is probably pretty wet; and if there is an rpm range where the air is not sucked in very strong so you dont get any water in; but it all depends on your driving style.
Your best chance is to probably tape up the wheel vents because that is where 75% (or mroe depends on your CAI design) of the water comes from.

 

[camrycev6]

After driving in heavy rain, open your hood, and you will see that there is almost no water under your hood. Even after going 120km/h for 2 hours in heavy rain.

But if you have a MazdaSpeed CAI, be more aware of the rain, since the CAI is right by the wheel = more rain water accumulation. Then again, the Mazdaspeed CAI comes with a Splash guard doesn't it?

Yes it does...my filter is surrounded by a metal splash guard. I see no reason to drive slow in the rain....speed shouldn't matter. I agree, though, that a deep puddle could be a problem.