Resolved 2G ECU/TCU Identification

[JOLTY TacoMan]

So I pulled this from a junkyard thinking it was an ECU. Then when I went to test it in my car I noticed that it had too few spots to plug into the car. I googled a number on the case and came up with something telling me it was a TCU. I tried searching but didnt find anything to usefull. Could someone clear up what exactly this is and if its worth anything?

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[19Eclipse90]

It's a '95 AWD EPROM TCU and it's worth whatever someone will pay for it.

Also, for reference: http://www.dsmtuners.com/forums/automatic-tranny/385239-how-tell-if-tcu-eprom.html.

 

[knochgoon24]

And EPROM TCU's aren't all that rare either.

 

[JOLTY TacoMan]

Thanks. So what is the purpose of this compared to an ecu?

 

[bryanwheat]

Thanks. So what is the purpose of this compared to an ecu?

To control the automatic transmission.

 

[JOLTY TacoMan]

Thats what I thought but I was just a little confused. I pulled this from the same place where the ECU is on my car. And I didnt understand why it would need to be eprom, but I guess thats if you want to change shift points and such?

 

[1qkfwd]

There are a lot of things to change in the tcu. Line pressures, shift points, converter lock up.