Does a 16144288 have the same wiring as a 7747?

[Blake]

I picked up a '93 4.3 with the complete wiring harness and 16144288 ECU. I've read a few vague reference stating the wiring pinouts are the same for a 7747 as a 16144288.

Is this true?

Can I mod a 16144288 ECU? the same as a 7747? I've gotten pretty good at soldering in the ZIF sockets.

[EagleMark]

Plugs for harness are the same.

16144288 ECM has a soldered in limp home chip, 1227747 has removable limp home chip.

Look at the XDF and ADX for 16144288 $A0 and then look at the ones for 1227747 $42 and tell me which one you would use?

I've read that all C3 ECM are the same and can use a $42 bin in them if LHM chip is correct. But I have never tried it?

[Six_Shooter]

I've read that all C3 ECM are the same and can use a $42 bin in them if LHM chip is correct. But I have never tried it?

I've never heard of that before, and every reference to that idea I have seen, says that you can NOT switch codes between the ECMs.

I can however confirm that the pinouts are indeed the same between '288 and '7747.

[Blake]

So is there a reason why I should run the 288 versus the 7747? I have both laying around...

[EagleMark]

I can't see a reason to run a 288 at all if you have a 7747.

[Blake]

Well I have a GM 4.3 sitting here on the stand and connected all the wiring. Sure enough, a 7747 and 288 really do interchange.