How to clean your mafs and change you HKS filter

[adrianfromthecastle]

Lately, my car's idle was idling like sh1t... especially at stop lights... my rpm kept running up and down...

anyways, I knew it was the mafs... so I cleaned it and heres my write-up.--------------------------------------------------------------------------------------------------------tools needed to clean mafs:~10mm socket wrench~something sharp~ screw driver~ Mass Air Flow Sensor cleaner (depicted below).

length of time: about 15 minutes.

make sure its the mafs cleaner and not a carb cleaner... the carb cleaners may be too strong for the sensors that they may ruin it.

step 1: Locate your mafs. Unless your running a blow-by-mafs set-up, most likely your mafs is gonna be located on the hot side of your engine bay (driverside). Ideally, you should plug the unattended piping with something like a towel or something... you don't wanna accidentally have something fall in there and get it sucked in...



step 2: With a screwdriver, or whatever size socket wrench it takes to loosen the couplings, loosen the coupling holding the mafs to your intake piping.

step 3: Locate the pigtail of the mafs. With a sharp object find your way through the little groves to take the little clip out. Or with pliers, you can just pull them out. Be careful not to damage the clip or lose it.



step 4: Take the mafs out. With your 10mm socket wrench or screwdriver, remove the 4 screws holding the filter on there.

step 5: Locate the 2 screws on the top of the mafs that hold the sensor in. Unscrew it to remove the sensor. Be very careful not to touch the sensors or get anything on them.



step 6: After removing the sensor, spray the sensor and the mafs body with the mafs cleaner. Similar to that of carb and brake cleaner, the fluid evaporates fairly quick.



After allowing it to dry, carefully place the sensors back into the mafs body and tighten the screws. DONE.

---------------------------------------------------------------------------------------------------

Changing the HKS filter.

Supplies needed: A new filter, duh!

As you can see, my filter's frekkin dirty. haha... it used to be yellow!



Step 1: Unscrew the knob in the middle of the filter, and remove the top portion of the filter.



Step 2: Open your new filter. The filter size should be 200.



Step 3: Obviously, remove your old filter, and add the new one in. There are 2 sides to the filter, the fine side and the coarse side. Make sure the fine side is face down facing the mafs.



heres a pic of the fine side



heres a pic of the coarse side. This side will be facing outward (being exposed to the air)



step 4: After you push the new filter in... screw the knob back on and put it all back together in reverse order of taking everything apart. If you plugged your intake piping with a towel or something, please remember to take it out before putting the mafs back on, lol.



now start your car, and enjoy a smooth, cleaner idle.

[ILikeMy240sx]

I appreciate the write up and all... but do we really need a write up on how to clean the MAF and change out the filter?

I mean if you need to read a write up on how to do that... you should just sell your car.

[H8tred]

Some people may not know that there's a dedicated spray for mafs.

[RB20DETodd]

I appreciate the write up and all... but do we really need a write up on how to clean the MAF and change out the filter?

I mean if you need to read a write up on how to do that... you should just sell your car.

hhahahahaha

[adrianfromthecastle]

I mean if you need to read a write up on how to do that... you should just sell your car.

this is nico, lol... are you seriously surprised?

[Clawhammer]

Eh, it's better than the write-up on how to make a maglite holder for you center console.

[KDashy]

this is nico, lol... are you seriously surprised?

That pretty much sums it up.

[adrianfromthecastle]

Eh, it's better than the write-up on how to make a maglite holder for you center console.

I'd like to see

I have the heavy duty maglite like the ones the cops have.... but I have no secure place to keep it

[sweets13]

this is nico, lol... are you seriously surprised?

I mean do you see some of the questions posted? funny you should write this up because I need to clean my mafs as well.

[frosti108]

id like to see a write up for this on the N60 or N62 mafs

[themadscientist]

this thread is more useful then the "hey guys, is my car cool"? threads. Thanks for the writeup OP. If you saved one knucklehead from shooting foamy engine brite into his MAF is was worth it.

[eds13]

I have the heavy duty maglite like the ones the cops have.... but I have no secure place to keep it

i simply strapped mine to the passengerside A pillar. i used the fire extingisher straps you can find at any auto parts store. no pics yet...

[Logan76]

Thanks Adrian, I wasnt quite sure on how to clean my mafs and change my filter, I appreciate the write up.

[nwmrkt]

thanks for the write up, it can be useful to some.

[adrianfromthecastle]

Thanks Adrian, I wasnt quite sure on how to clean my mafs and change my filter, I appreciate the write up.

w0rd up....

next, Imma do a write up on how to properly secure yourself in your vehicle's safety restraint.

[ZiG]

I'm surprised nobody has said anything like "you know what will make your engine run like crap, is running a draw through maf and an open atmosphere BOV", haha. You must have spent a lot of time tuning whatever you have to make it run well.

[adrianfromthecastle]

You must have spent a lot of time tuning whatever you have to make it run well.

or by simply getting an HKS EIDS for like $70

[positron1]

Thanks for this write-up, I've never unscrewed the black box before so I need to try that.

[Dattebayo]

Sweet! I am gonna change you filter now.

(I didn't know they made MAFS cleaner. awesome)

[adrianfromthecastle]

Sweet! I am gonna change you filter now.

dammit!

[srpowered240sx]

adrian, were does the eids mount?? what wiring will i need to tap. im gonna buy one monday.

[adrianfromthecastle]

adrian, were does the eids mount?? what wiring will i need to tap. im gonna buy one monday.

the wiring is basically the same as a safc. mount that bish and toss that mug in y0 glove compartment, or double side tape it to the inside of the ecu kick panel

[srpowered240sx]

wicked, thanks man.

[adrianfromthecastle]

wicked, thanks man.

any day

[Jookmasta]

how much for the can of MAF cleaner? though not exactly rocket science, tis something that a noob with a 240 as their first car could use. is your idle better? did your mpg improve? did you gain the stated horsepower that is on the MAF cleaner can?

[srpowered240sx]

i sell the same stuff, its 6bux a can. worth it to help troubleshoot if you ask me.

[adrianfromthecastle]

how much for the can of MAF cleaner?

about $5 at vatozone

is your idle better?

10x better at starts and stop lights.although, I dont backfire as much as I used to . I kinda like the little fireballs I'd get between shifts

did your mpg improve?

iono...

did you gain the stated horsepower that is on the MAF cleaner can?

sorry, I searched, but didnt find a write-up on a DIY dyno

[Dattebayo]

sorry, I searched, but didnt find a write-up on a DIY dyno

OK, you need a dead hooker, two rolls of duct tape, a full beer bottle and two watermelons.

[themadscientist]

OK, you need a dead hooker, two rolls of duct tape, a full beer bottle and two watermelons.

That's sticky material right there

[adrianfromthecastle]

That's sticky material right there

+ custom title