CLEAN YOUR MAF SENSOR before your "filter" destroys it

[Wolverine]

Clean Your MAF

My MAF was full of Oily gunk contributed by some OIL FILTER.....

 

Extracted this how to and DIY ...now much better....

 

The Mass Air Flow sensor is a very delicate sensor. It uses two wires to measure the amount of air flowing into the engine. The two wires are heated (by electricity) and the more electricity used to heat them tells the ECU how much air is flowing past them.

 

Between very fine dirt and the trend towards oiled filters it's very important to clean the MAF. Cleaning the MAF has so many benefits it's unreal. Between reducing pinging, increasing mileage, and preventing it from burning out (saving yourself $$$) there's no reason to not clean the MAF sensor once every 6 months. Also clean it shortly after installing or reinstalling an oil filed air filter.

 

You don't need many tools. As a matter of fact, a screwdriver and the pictured stuff is all you'll need (attached)

 

You'll need a flat head screwdriver. Those are Safety Torx or Tamper Proof Torx bits. You can buy a whole set like I did or just get size T-20.

 

Now, it's time for an important note. You see that big red aerosol can? It's ELECTRICAL CONTACT CLEANER. This is the only thing you should use to clean your MAF. Only ELECTRICAL CONTACT CLEANER. No windex, no carb cleaner, no brake cleaner, no rubbing alcohol, and no Q-Tips.

 

Step 1: Open the hood and locate your air box. If you can't find it...please stop right now and have a friend clean your MAF for you.

 

Step 2: Open the airbox and move the assembly up to give you room to work.

 

Step 3: Locate the plug on the bottom and move the grommet down to give you room. See picture.

 

 

 

Step 4: Take the flathead screwdriver and pop the four tabs holding the assembly in.

 

Step 5: Reach in and disconnect the wiring harness from the MAF. Don't rip the wires or anything!

 

Step 6: Remove the assembly. Locate the MAF and remove the two screws holding it in.

 

 

 

Step 7: Spray the living daylights out of the wires. Do NOT touch them. ABOSOLUTELY DO NOT TOUCH THEM. Those wires are very small and delicate. If you break one of them....it's a $150 mistake.

 

Step 8: The installation is the reversal.

 

Do this once every 6 months and your MAF will continue to be clean and your performance won't suffer

[Teddi]

This is just a thermocouple, nothing to worry unless you use mesh filters

like K&N where oil is used to clean the filters.

 

If you over-oil the filter, under high flow, the oil will stick to the

AFS (Air flow sensor) giving inaccurate reading to the ECU.

 

Just spray the wires with quality electronic cleaner to remove the dirts

and oil.

[Vit4wd]

Wolverine,

 

It would be wise to acknowledge the source of this article, otherwise you risk being sued.

 

Your disclaimer will not save or keep your arse in one piece.

[Genie47]

Hello, not oil filter but oiled filter.

 

This is true that oiled filters when over-oiled will contribute to the problems. Solution, don't use oiled filters. Use stock paper/fibre filter.

[Tanjm348]

interesting...I had a sensor relocated cos I installed a Simota filter. I believe it was the MAF. But its not in a wire form....it a triangle shape plastic with a small plastic ball at the tip. My rides a Corolla G8.

 

I actually drop it a few times while relocating it.

 

Anyway have you tried "Coolant bypass" on the throttle body?

Edited September 17, 2005 by Tanjm348

[Wolverine]

Coolant bypass..? Artery bypass i heard off...

with the air moving so fast into the tb i dun think that's gonna cool down the air that much to increase it's density ....why didnt someone create a Heat sync of some sort ..or even peltier systems ...even better ....just a thought

[Tanjm348]

http://www.mycarforum.com/forum/gforum.cgi...0bypass;#297817

 

read this...

[Surf2004]

Where to buy this electical contact cleaner ?

 

And what result do you get after cleaning it ?

[Jusnel]

very interesting...

 

do you know anything about O2 sensor?

 

i just went for servicing and my old spark plugs are black in carbon on the heads....

 

mech says could be fuel/air mixture is no good. maybe due to injectors, O2 sensor or MAF/MAP sensor. (i can't make out whether it's MAF or MAP that he is referring. mech is malaysian, his england not so clear).

 

any advise on this? how do i confirm what is giving problem?