LB7 Wiring Issues?

[bulletcamel]

2002 LB7 fuel gauge circuit code P0463, AC sensor circuit code P0530, oil pressure circuit low signal code P0522, security light always flashing and battery light on, abs light on, truck has a miss at idle and occasionally throws a transmission low signal code injectors are brand new and rates are good no injection codes. Is this awiring issue or all separate issues?

 

[2004LB7]

Try the easiest one first. Clean the ground connection on the frame below the drivers side door. When that one goes, it does all sorts of weird stuff and triggers codes that can be hard to pinpoint

 

[bulletcamel]

i have cleaned/replaced every external ground on the engine and frame i cannot find the drivers side interior ground to clean

 

[2004LB7]