Buy a Used AFM?

[theKnifeArtist]

Is that a good idea? Do these sensors deteriorate or get lazy as they age? I got a code 31 multiple times after clearing and checking and i think its part of the reason my car's been stumbling. I cleaned it with some electrical equipment cleaner shit and it didn't do much as suspected. So i thought to replace it.
Any thoughts?

Thanks.

 

[ft413]

i dont see anything wrong with it. i bought a used lexus afm for my 550s. and it works great, just try to get one that looks like it was handled with care

 

[theKnifeArtist]

what's the advantage of the lexus afm?
i think i used to know, but totally forgot.
i dont plan on changing my injectors any time soon, is there any point of me getting a lexus afm?

 

[Nick M]

They don't really do anything as they age, other than get contaminated, dropped, or hacked.

 

[easternguy2005]

I bought a used one with the lexus aluminum and put the lexus electronic black box right on my stock supra housing for the time being. Haven't seen the code or a problem with it since. I don't think they wear out but they are real sensitive to dirt dust and especially oil.

I took the dead one apart to see if there was any salvaging. You can't. It's hard core glued together. The photo LED's are glued into the holes. The metal which is springy and really thin is 1/4" wide and the hole that the LED's see through is 1/8" wide. Its sealed between two pieces of similiar silver metal that is hard and snaps like a one sided razor blade metal. You can't really get in there to clean it because the space between the 2 pieces of metal could maybe squeeze a piece of paper in there.

It's really perfect as a sealed non serviceable part. Here's some pics using a hammer to disassemble

The first pic illustrated the black glue used. Feels like silicone gasket stuff.

The second pic is the actual metal that wobbles back and forth. Image taken on the black part of a CD case to make it stand out better.

The third pic shows the window for the LED to see the reflection - yellow thing on top is a pencil.

 

[Supra469]

I bought a used one with the lexus aluminum and put the lexus electronic black box right on my stock supra housing for the time being. Haven't seen the code or a problem with it since. I don't think they wear out but they are real sensitive to dirt dust and especially oil.

I took the dead one apart to see if there was any salvaging. You can't. It's hard core glued together. The photo LED's are glued into the holes. The metal which is springy and really thin is 1/4" wide and the hole that the LED's see through is 1/8" wide. Its sealed between two pieces of similiar silver metal that is hard and snaps like a one sided razor blade metal. You can't really get in there to clean it because the space between the 2 pieces of metal could maybe squeeze a piece of paper in there.

It's really perfect as a sealed non serviceable part. Here's some pics using a hammer to disassemble

The first pic illustrated the black glue used. Feels like silicone gasket stuff.

The second pic is the actual metal that wobbles back and forth. Image taken on the black part of a CD case to make it stand out better.

The third pic shows the window for the LED to see the reflection - yellow thing on top is a pencil.

Thanks for posting this up. First time I've seen what it looks like on the inside.

 

[easternguy2005]

I was impressed with the springiness of that flapper part - When you touch it it feels like a piece of tinsel from a christmas tree. I pulled on the the thinnest part 2 or 3 times and now it curled up. Note that the length of the flapper is about an 1.5" from end to end. If I just pick it up its starts wobbling back and forth.

There are two LED's that "look" at the flapper. One looking at a down at the flapping metal at the 1 O'clock position and the other is looking at the 10 o'clock position.

The kicker is that this was shot and throwing codes yet when I took it apart it was clean and shiny and nothing seemed to be oily.

Now throwing it in the trash.

 

[grimreaper]

my old one had a thick layer of white rubber covering all the connections in it.

op did you clean the afm electronics itself (little slots near top of column) or just the connector?

 

[theKnifeArtist]

i cleaned the exposed area where the air passes through.

thanks for the info everyone

 

[Supra469]

i cleaned the exposed area where the air passes through.

thanks for the info everyone

What did you use to clean it with??

 

[theKnifeArtist]

this electrical components cleaner stuff. i forget exactly what it was, it wasnt my stuff

 

[Poodles]

I would buy a lexus AFM as you can just use the box from the lexus in your stock housing until you decide to get injectors. It's what I did.

Also, you can clean the hosuing all you want if you remove the electronics first, and if you CARFEFULLY use a lint free cloth with a little solvent (I used alcohol) to clean the vortex pillar you should be fine.

You do tent to get some builup on the pillar over time depending on your intake...

 

[Zumtizzle]

I cleaned it with some electrical equipment cleaner shit and it didn't do much as suspected.

Thanks.

Bad idea.

Get a new (used) one.

Edit: Well maybe not. :dunno:

But yea afm's do go bad.