i need help, i recently bought a 93 4wd s-10 blazer with motor out of it. the original was no good, so what came with it was a complete tbi z motor out of a pick up, (1990 0r 1992) and the intake and stuff for the original cpi, after hunting down all the missing parts i put it all together. i replaced all the obvious stuff like plugs, wires, water pump, tstat, complete distibutor, intake gaskets, bla bla bla, you guys get the idea. i have good fuel pressure, timing is dead on and i have good compression. but it pings real bad on heavy acceleration and idles rough, it idles like it has a miss but every cylinder is firing. the only code i have is 43 electronic spark control or knock sensor. one knock sensor is good and one is bad. on the w motor it has two knock sensors. one on the left and one on the right rear of right head. z motor has one, on left side or two, left and right side. but with one sensor not working it shouldnt run this bad.

my question is, does it make a huge difference on balance shaft and no balance shaft? like with the computer, and by the way, its has a digital egr valve that works, so it not a stuck open egr? any ideas please help. i'm so frustrated. there is only so much info you can get from obd1 system with my mac scan tool. so i'm open to any success stories lol or ideas thxs