Rubber compound on ECU I bought

[SubversionX]

So, in troubleshooting my car, I decided to try a different ECU. The guy I bought it from said it was rebuilt, but the cover had an E on it. I figured that for $50, it might be worth it to take my chances. So, this is what I got; Obviously not an EPROM, but that's not so much of my concern if I can resell this. My concern is that when I cracked open the case, I found three spots of white rubber compound that are blotched on the circuit board; probably for repair or extra precaution, but I'd like to know whether or not this may be bad for the ECU and should be removed, or if it's fine where it's at.

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[phunny]

That is an EPROM. Not sure out the rubber.

 

[SubversionX]

I don't think it is. I believe that it's just the cover from an ECU that was EPROM. It has the serial ID: JE331B719C, and doesn't contain this chip. Could I be wrong?

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[19Eclipse90]

OP, I'm pretty certain you have it correct.

How to ID an EPROM ECU 1G/2G
Picture of 2G EPROM ECU circuit board

Unfortunately I don't know about the rubber compound either.

 

[yokotabrat]

You are correct, definitely not an eprom ecu.

The white stuff just looks like RTV. Shouldn't hurt anything assuming its the stuff that's approved for pcb work (which it looks like it is).

 

[TurboAnything]

Wow i have never seen that one before. Also the caps in that ecu are not new so i have no idea what was rebuilt.

 

[snowborder714]

It's not an EPROM.

Looks familiar to this.
http://www.dsmtuners.com/forums/newbie-forum/241017-what-happened-inside-my-ecu.html#post151017397

 

[phunny]

My bad, I just looked at the cover, that's dirty

 

[SubversionX]

My bad, I just looked at the cover, that's dirty

Yeah, it seems a little shady, but the guy I bought it from didn't know. Figured it might be worth the cost, especially if it was an EPROM. It seems to work fine, so I won't be too concerned about the longevity of it. Appreciate the help though guys!