New LS1 knock sensors were installed on drilled/tapped holes on side of swapped aluminum LS2 block (orginally iron LS1). From day one I repeatedly get P0327 and P0332 codes. The wires ohm correctly and continuity is good from PCM harness to connector. Ground (G103) is good. I have tried increasing all engine diag tables for rev and cyl modes to max (32747) and that makes it take a couple of more cycles to code but they still do come back. I have checked motor mounts, exhaust/cats, pulled intake back off, replaced plugs, ohm'd wires, re-torqued bolts to spec., etc. Physically, all that is left is the PCM to replace.
1. Do the diag tables have anything to do with what the PCM is expecting to "hear" to pass the dtc tests or am I wasting my time raising and lowering them to satisfy these tests?
2. I have seen a couple of tunes for similar setups and the dtc's for P0327 and P0332 were turned off. Will the knock sensors function (register knock) and PCM react with those off?