Ok ladies and gentlemen, I have an issue that I have been trying to narrow down for some time now. These three codes have been the bane of my existence for way too long.
P0327: Knock sensor 1 circuit low input (bank 1 or single sensor) LH bank signal less than threshold determined from ECM model above 2200 rev/min
P0150: O2 sensor circuit malfunction (bank 2, sensor 1) Front sensor RH bank stoichiometric ratio outside operating band
P0130: O2 sensor circuit malfunction (bank 1, sensor 1) Front sensor LH bank stoichiometric ratio outside operating band
I have replaced the knock and both upstream O2 sensors. I have no leaks that may have been dripping on to any connectors, and am tired of throwing parts at this truck (see sig for description).
Recently I have replaced:
Knock Sensor
Upstream O2 sensors
Valve cover gaskets (not leaking, just wanted to)
Plenum gasket
Valley pan gasket
Upgraded to Magnacor 8mm
Champion copper plus plugs
Coil pack
Power steering pump
Serpentine belt
NEED to do my Tensioner
Any help would be appreciated, before I douse it with gasoline and set it ablaze. Thanks.