hello
I got a 2002 chevy blazer 4.3 with bad engine and tranny. (blown engine)
The engine and tranny was replaced. the donor was 2004 s10 - no computer i can't test this engine in the car.
After surgery the engine starts good, drives good but: the engine have rough idle - only a little. It's not like one cylinder is not working rather i say irratic. On the idle no codes.
If the engine goes above 1900-2000 rpm - i got 300 or 304 codes but as i said - no sign of dead cylinder. The spark plugs, cables, whole distributor with cap, coil replaced - no change, pickup, evap, map, PVC - no change. fuel pressure around 60. no smoke, oil pressure good, already 10.000 miles on the new engine.
I found that "Crankshaft Position System Variation Learning Procedure." might be needed after the engine/pickup replacment, but only a scan tool can command the PCM to perform the Crankshaft Position System Variation Learning Procedure.
I live in Poland and i have no acces to gm scan tool, my lame scaner can only shows codes and turn off the service engine light.
I found that EFILive can do CPSV Learning Procedure. Is it true?
Do you guys think that CPSV Learning Procedure can help?
Anybody try to run 2004 engine with 2002 wiring and computer?
I know that the spider system is different in 2002 vin w and the 2004 vin x.
Help me Obi-Wan Kenobi, you’re my only hope