jeepguy553

Not much info on this one on GMECM. Anyone know of a hac for this one? It is from my 1992 Blazer, 4.3L Vortec, 4L60 trans (might be 4L60E).

BMmonteSS

Nope can't help you there, I'm tuning a 92 truck with that ecm for a buddy and had to buy the Tuner cat TDF.

jeepguy553

Strange thing is that WinALDL supports it. I am just trying to tune the low end knock out of it. Crap!!!
Thanks anyway.

JP84Z430HP

About the only thing I know about that ECM is that it's pin compatible with a 1227747, or 1228062, at least with a 4.3 full size truck bin in it. Also, you must have a 700R4 trans (or 4L60, not "E") because it is just an ECM, not a PCM!

If you find anything, I would be interested, I have one of them sitting here somewhere.....

jeepguy553

Well, I'll be datalogging it tomorrow on the way to work now that I know WinALDL will log it. I'll let you know what I find.

jeepguy553

I just did another WWW search and found out that this ECM is actually for a TBI system. the 4.3L I am talking about is a Vortec MPI engine.
Looks like I'll be pulling the ECM out to see which one it is. I thought I had gotten lucky.

BMmonteSS

there are about a million different ecm's GM used between 90-93 particularly the 4.3. From what I can tell in Tuner Cat 8062 is an exact clone of the 747. Let me check the locations of some of the main tables and I'll hint to you guys if you should try to mod a 747 ecu.

jeepguy553

I'll pull the glovebox today and tell you which one the Blazer has. I certainly hope it is one that has been hac'd so I can create a TunerPro ECU for it.