Cleaning Maf help...
that picture is after like 20 min of spraying my maf lol. only half the gunk is in that picture... but no before the install it was the stock intake with a cone on it not the box. the cone was rusted to hell tho.... 
after install of my perrin my tune got all messed up. my AFRs at WOT went from 10.9-11.2 to 11.8-12.5.... and i cant get retuned cause i need a clutch lol

after install of my perrin my tune got all messed up. my AFRs at WOT went from 10.9-11.2 to 11.8-12.5.... and i cant get retuned cause i need a clutch lol
Can't wait for this weekend. Im going to clean my mass airflow sensor, seafoam my intake, change my tranny fluid and radiator fluid, swap out my intake filter, change my spark plugs and wax my car.
Yeah I was going to use this stuff to clean mine until I read the warning. And they definitely are talking about our MAF. It specifically mentions Karman Vortex type MAFs which is what the evo has. I searched around and found posts on other boards from people who damaged their Karman Vortex type MAF after using it. I'm not risking it, but I don't know what the recommended cleaning method is
Yeah I was going to use this stuff to clean mine until I read the warning. And they definitely are talking about our MAF. It specifically mentions Karman Vortex type MAFs which is what the evo has. I searched around and found posts on other boards from people who damaged their Karman Vortex type MAF after using it. I'm not risking it, but I don't know what the recommended cleaning method is
Hold the can back a few inches = Win
Again many here have used it for years without one reported MAF damaged that I have ever read
You really have nothing to worry about if you don't use the straw and hold the can at a distance. A toothbrush to clean the walls and a Q-tip on the sensor will be fine as well.
Which means it is ok to some of spray can be on sensor or wire( whatever u call)? I think confusing me is other cars that i cleaned, it requires to remove maf sensor.
I used the CRC cleaner to clean my MAF recent (had the same filter as OP actually, but it was no where near that bad on the filter or maf, switched to Amsoil filter now =) ). Anyway, as it has been said don't use the little tube and spray directly on the orange wire. Spray form a bit of a distance and you are fine. Its not the chemical that has issues with the MAF but the pressure and volume of cleaner hitting it if you use the tube directly on it.
Then just make 100% sure its completely dry before you connect it.
Then just make 100% sure its completely dry before you connect it.









