For Legacy b4 owners - MAF meter

[Aaendewy]

If own a legacy year between 1999 - 2003, and have an after market pod filter installed, I have a question for you, what kind of Pod filter do you have installed? And do you notice any effects with the Air Flow Meter Sensor?

Additional information:

Recently I've changed two air flow sensors, and noticed that my pod filter causing the sensor to not work correctly, which means a lot of power lost because the sensor can not tell the engine what's going on and so therefore the computer (ECU) doesn't know the amount of petrol etc... to use. I've done abit of research that some after marker pod filter cause the AFM sensor to blow up, if you have a pod filter installed and the sensor works perfectly, I would like to know what brand/type is it. cheers

[ADIKT]

Is the pod secured to the chassis/body? Large vibrations from it banging around and all that can cause them to fuck out...

[MercuryFree]

Aside from the aforementioned vibration, the main filter related reason these fail is due to the use of oiled filters. (and I would assume use of shitty filters that don't filter very well)

[ADIKT]

What afm you using?

[Aaendewy]

Bought it from Repco $50, I thought it would good to try different filter, turns out the filter I bought is shit..

[Aaendewy]

 ADIKT said:

What afm you using?

Is there such thing as type? Cause all AFM for legacy b4 is the same

[ADIKT]

 Aaendewy']

[quote name='ADIKT said:

What afm you using?

/quote]

Is there such thing as type? Cause all AFM for legacy b4 is the same

Theres a few differant ones..... did it look like this?

[Joker]

b4 era dont even have a sticker they are more like just a wire/plug that is connected to the intake hose just past filter

[Aaendewy]

 ADIKT']

[quote name='ADIKT said:

What afm you using?

/quote]

Is there such thing as type? Cause all AFM for legacy b4 is the same

Theres a few differant ones..... did it look like this?

Nah those are for wrx sti and maybe forester.. legacy is simple.. as explained above

[Jakee]

Thats the exact same as my legacy bro. What are you on about?

[neodowd]

Newer models have hotwire afms

[Jimbob]

they are all hotwire/film, just the b4(quite possibly v5/6) ones are an insert type where the earlier ones it is incorperated into the housing

[Guest]

 Jakee said:

Thats the exact same as my legacy bro. What are you on about?

i agree, i think you need to read up a tad bit more. if you got your pod nice and secure with a bracket etc and your not using oiled filters there must be another more serious fault.

have you tried cleaning your afms with afm cleaner?

checked for codes?

[Jord]

The BE/BH and V5/V6 models run an insert type afm NOT the coloured box ones found in all previous generation legacys/imprezas.

Vibration will be the main killer, im betting your cheap repco filter did not come with a brace to mount to the body?

Personally I cant see the reason of keeping the pod if your just killing AFMs with it. Chances are your not making any extra power and have just increased the chance of detonation.

[Jakee]

Mount it properly and see how that goes if you really want to keep it or just toss it and a genuine subaru panel filter.

[ADIKT]

Or pay that extra bit and get a decent filter like a apexi on or something

[Jord]

Yes if your adamant on staying with a pod then I would suggest an Apexi Power Intake. Dry paper element, one of the highest flow rates and better filtration than the likes of a HKS foam filter. Are around $140 via Japan if you get them through 41 Automotive.

[Aaendewy]

 Jord said:

The BE/BH and V5/V6 models run an insert type afm NOT the coloured box ones found in all previous generation legacys/imprezas.

Vibration will be the main killer, im betting your cheap repco filter did not come with a brace to mount to the body?

Personally I cant see the reason of keeping the pod if your just killing AFMs with it. Chances are your not making any extra power and have just increased the chance of detonation.

I bought an adapter.. there's no air leaking or anything, it's fully secure. I just put in the factory box air flow in yday, hope to last the life of the sensor a little long.. but anyways, i still haven't got any answer for the type of after market filter you guys are using? cause I dont mind spending on the brand filter like HKS etc... but idk if it's any better..