Help identifying a component please.

[Maddan]

Hi, and welcome me to your awesome forum.  I've always found the answers before but have had to sign up today to ask for some help.

I have this component,  I'm not sure what it is, from a 1992 Toyota 1UZ engine ECU.  I pulled the component when cleaning up after some leaking electrolytic caps but two of the pins fell out.  I wasn't being rough, they came out with the desoldering gun.

Obviously if I can't find a replacement then the entire ECU will be scrapped.

It's 24mm x 6mm x 14mm with about a 1.6-1.7mm pin spacing.  12 pins total, two missing in the pics.

[Richard Crowley]

It certainly looks like a full-custom (BrEnglish: "bespoke") potted, hybrid module.  Unless you can identify the part number from the context (manufacturer name/model of wherever it came out of), and they documented it (which seems unlikely) it is the classic "black box".

[JVR]

Working real slow with a scalpel/dremel you should be able to get solderable patches on those missing leads. Then wire it up with modwire and pot it up.

[JVR]

Or if all fails, www.perfectpower.com

[Maddan]

I thought that may be the case being a proprietary Toyota/Denso thing. 

I'll have a go at surgery and see where I end up. 

Thanks a lot for your help guys.  I appreciate it.

[wagon]

Working real slow with a scalpel/dremel you should be able to get solderable patches on those missing leads. Then wire it up with modwire and pot it up.

This works well.  I've even done something similar with QFP IC's.  You have nothing to lose.

[CatalinaWOW]

Surgery is fine, but before you go to the effort, verify that the pins actually connect to anything.  The fact that they came out so easily may be the root cause of your ECU failure, but it may also indicate dummy pins.

[tautech]

I pulled the component when cleaning up after some leaking electrolytic caps but two of the pins fell out.  I wasn't being rough, they came out with the desoldering gun.

Do you think the pins were corroded through as a result of the leaking caps?

[wagon]

I pulled the component when cleaning up after some leaking electrolytic caps but two of the pins fell out.  I wasn't being rough, they came out with the desoldering gun.

Do you think the pins were corroded through as a result of the leaking caps?

I see that regularly!  Tracks, vias and legs all rot from cap juice.