I manange an automobile scrapyard where to find pm?

Gold Refining Forum

Help Support Gold Refining Forum:

This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.
I worked for the last 13years in a factory that makes the engine control units (computers) and the airbag control modules. I can tell you that you have nothing to fear about the airbag units, just as long as the battery has been removed from the car and the car has sat battery-less for an hour or so to let the capacitators discharge.

Both the engine control unit and the airbag control unit will have some gold plated pins, but probably not every pin will be plated. They both also have QFP's (IC's) that may contain some gold. There will be a large amount of monolithic capacitors on both, that from what I read on this forum could contain some PM's.

On the airbag units, if they are newer, there will be these small components that are metallic and look like they are outlined with gold. If you were to carefully open one up you will see a tiny chip (like what is in an IC, just smaller) that chip is connected to the contacts internally with solid gold wires. They are very tiny but you can clearly see them. These are the "G" sensors. Newer cars will have a few on each board.

I hope this helps at least a little. Good luck!
 
Heh when doing 150+ cars a day in a small area yard we don't have alot of cars that sit for more than a few minutes lol. But in 3 days doing it whenever I get free time I have roughly 150 lbs of pcb boards 10 lbs of plated and pins I am waiting on some of the acids to do my first test run
 
bigscrap,
Looks like this post is going to pay off pretty well :p

Who would have thought it at the first post :?:

Looks like I better get busy clearing out all the cars around here too.
Good luck
Tom C.
 
Well I am used to east coast street racing forums so I am used to forum fighting which then turns to real physical violence. So coming on here I wasn't aware people were actually helpful this forum is full of helpful people and the fact that most on here are highly intelligent with a wealth of knowledge and ideas is great.
 
bigscrap84 said:
Heh when doing 150+ cars a day in a small area yard we don't have alot of cars that sit for more than a few minutes lol. But in 3 days doing it whenever I get free time I have roughly 150 lbs of pcb boards 10 lbs of plated and pins I am waiting on some of the acids to do my first test run

That's great! I wish you luck.


The only advice I could offer you at this point is. take your time, there is no need to get in a hury. The gold will still be there, it's not going anywhere. Separate your materials well before trying to process anything, you will be glad that you did. Above all, have fun and be safe!
 
tek4g63,

What about the chemical portion of the airbag unit. Do they still contain the explosive compound Sodium Azide?

Steve
 
Yes LazerSteve, I'm sure they do. But that's not what I'm referring to. I'm sorry, I can see now that I was not clear enough. I hope that I have not lead anyone down the wrong path. What I was talking about is not the igniter part of the airbag (located behind the bag its self). What I am talking about is the electronic control unit. It will be located somewhere away from the bags themselves. It is just a small PCB (computer) in a case simmilar to the ECU. This unit houses the "brain" for the airbags, to tell them when to deploy.

I do not, under any circumstances recomend removing the airbags or anything directly attached to them from any car. I am truely sorry for the mix-up.

I would take a picture of one to show you exactly what I'm talking about, but I could get fired for that. Maybe I'll remove the center console from my car tonight and take a pic of one of these units to post. I feel like I owe that to all the members.
 
bigscrap84 said:
Is anyone in the nj area that could show me howbto decipher high from low grade etc. The pcbs still confuse me for some reason

Boardsort.com has pictures :|
 
lazersteve said:
skippy said:
Bottom middle drawer has brass discs in it with a silver crust on it, no? I found something like this in my miscelaenous pm containing doo dad collection, and I think I may have pulled it out of a microwave, but I'm not sure. Anybody know more about where these things come from?

I think you nailed it steve thanks.
 
150 cars a day doesn't leave much time per car. How many people are working on a car at the same time? Can you describe what each one does?
 
Ok well after a few weeks of careful treasure hunting the best ecus. From cars are the gm 3 series motors 3100 3400 3800 and most vans box trucks blazers with the vortec style motors. 4 large gold plated pin areas chips etc.
 

Attachments

  • 2012-04-10_10-53-12_497.jpg
    2012-04-10_10-53-12_497.jpg
    569.9 KB
  • 2012-04-10_11-02-29_0.jpg
    2012-04-10_11-02-29_0.jpg
    1.3 MB
  • 2012-04-10_11-02-47_966.jpg
    2012-04-10_11-02-47_966.jpg
    1.4 MB
thats from a ford. other makes may have a like component but i havent found one yet in chevy's. heres a shot from a ford mustang.Picture 039.jpg
 
Personally, I wouldn't spend my time chasing gold out of engine control units. They are built very rugged meaning they can be difficult/time consuming to open. A lot of the time the board is coated with silicone making parts removal difficult. And, even though there is gold on the pins and inside chips, I think the rewards are small for the effort. That's why most of us like going after computer scrap.... It's easy pickins.

ECUs also re-sell anywhere from $40.00 to 150.00 each on ebay so I think their value isn't in the PMs

Platinum spark plugs, MAF, O2 sensor and of course the cat would be my targets. Not trying to burst your bubble but rather help maximize your gains. If you only have 3 minutes with each car as it goes through that alone would rule out removal of the spark plugs and O2 sensor. If you do end up processing ECUs, I would be very curious about your returns. I'd like to see you prove me wrong.
 

Latest posts

Back
Top