i fitted a blitz airfilter 2 weeks ago to MY98 wrx (which sounds awsome) but for the last week i seem to be haveing idleing problems (sometimes i think it gonna stall) and i'm getting the odd pop from the exhaust!
does this sound like the maff sensor?
should i change back to the original airfilter?
any help would be great!

 

Hi Mate

Yes that does sound like the maf.

I have the same blitz induction kit on mine and have been told to change back to a green panel filter coz my maf is cocked up!!
Bloody pain when you've forked out £170 odd but better in the long run!!!

 

ah bugger! so will it be back to normal if i do change it back? yea it is a bloody pain,wish it could have lasted more than 2 weeks but i really dont want to mess it up!!! thanks for the help

 

Yup, sounds like MAF, but it won't repair itself if you revert back to standard, once it's fooked, it's fooked!!
Do an error code check to see whats wrong!!

 

It's fine to use an induction kit, but use one that actually has a filter on the end (the Blitz one is more like a tea strainer than a filter), and be very careful fitting it!

(The original) MAF sensors wear out, whatever the air inlet system - give'em 3 years & they'll be reading wrong, just like lambda sensors.

And remember to change the MAF sensor as well as the filter, ASAP!

 

oh crappy pants,i didn't realise that! iv'e got a years warranty so if i put the standard filter back on i'll hopefully get them to sort it out!
cheers guys!

 

if the CEL light is not on can you still do an error check?

 

Yes you can, plug the connectors toghether, reset the ecu and go for a gentle drive while they're still connected, and the cel should flash a code at you! once it's done that, undo the plugs!