I seen that and from what I can tell the only difference in the two would be pin d2 on the 1227429 it is map ground and on the 1228062 its the tps,cts ground. looking at the pinout for the 1227429...

Im sorry sir I did look and could not find them. Excuse me for not bieng very tech savy

I have a 87 s10 blazer that was originally a 2.8 with the 1227429 ecm. I did a 4.3 conversion but did not change my factory wiring harness. I have been told I can just repin a few of the wires and I...