Injen CAI problems Mazda3

[Joe52787]

I Installed an injen CAI awhile back and the engines been leaning unusally, like it bogs alot, dosnt go anywhere when given gas. The dealer said i was getting to much air from the intake?? How do i tune it?? any help would be nice

 

[knowledge007]

Dosen't need tuning. Did you unplug the battery before install???

 

[Joe52787]

yeah

 

[Joe52787]

like when the engine is cold it runs fats and nice for like 30 sec then it lags alot

 

[Joe52787]

i also this im burning up the cat as well

 

[knowledge007]

How did the dealer confirm this hypothesis. Did they run a test? Just curious??

 

[Joe52787]

idk drove it assumed it, how do i check for leaks or how do i fix it.?

 

[knowledge007]

Well I am no expert but, why can't they check the ecu reading or run an emissions test and see if the car burning lean a little to much. Don't understand why, but then again it is an aftermarket part.

The only thing I can think of is to tighten all your harness that hold the intake to the engine. Make sure their are no holes on the cuplink to the engine, MAF screws, and check the cone for any holes of some sort...

Just curious, is their two harnesses on the part that connects to the top of the intake. You know the rubber that is about 4 inches and is connected to another sensor I guess???

 

[Joe52787]

well when he ran the cpu test nothing read wrong no check engine light, if a sensor or something was bad a light would come up im guessing.. if an engine been leaning for a couple of months will it stay leaning even if problem was fixed.. how do i go about checking CAI for leaks or making sure MAF sensor is flush?

 

[jflash]

if you didnt unclip the harness from the battery box you probably pulled one of the maf wires out. you will not get a cel from this.

 

[knowledge007]

if you didnt unclip the harness from the battery box you probably pulled one of the maf wires out. you will not get a cel from this.

What do you mean the box that sits over the battery. If thats what you mean then yes he did take that off b/c he said he disconnected the battery???

 

[jflash]

on a regular 3 the maf wires are connected to the front side of the battery box not the top. when you install a cai there is not enough slack in the wires for engine movement and after a while the wires pull out of the maf.

 

[knowledge007]

on a regular 3 the maf wires are connected to the front side of the battery box not the top. when you install a cai there is not enough slack in the wires for engine movement and after a while the wires pull out of the maf.

I wouldn't know anythying about that. I personally had a 04 m3 but neve modded it... so maybe...

 

[jflash]

unfortunately i know first hand.

 

[$inCitySpeed3]

i would think it would run better if its leaning out, since there running 10 to 1 on the dynos, but i guess not..I wonder how many points it up on the af ratio...but the stock box back on and see what happens