livingez_123
Full Access Member
Well people, I'm stumped. I freshened up the LQ4 in my 05 Denali. New rings, rod, main and cam bearings. New Summit pro ls truck cam...210 218 .500 112+1, LS6 lifters and springs, melling timing set and oil pump. Block and heads surfaced. It starts, runs and drives great but I'm getting knock sensor low circuit both 1 and 2. It idles real low about 550 rpm and the cam is very noticeable at idle. I haven't had it tuned yet. I have replace the knock sensors and harness with AC Delco parts and the codes still come back. Is it possible the cam is causing the codes because it's not tuned for it?
