1998 4.3 to 99 5.7l

[willheim]

dropped in a 5.7, new inection harness from ecm to engine, as well as new ecm for the engine. Dash lights not working. Engine started but nothing worked, does anyecone have a ecm pin out for 98 350 to 99 350 as well as 98 4.3 wiring. Need to trace and make sure all is well...

[567234ta]

I'm suprised nobody has answered this for you. If you are still having the problem i would suggest you pm either redheartbeat or gasguzzler.