Okay so pulling these codes off with my OBDII reader I bought on amazon...we have:

1.) P1590 — "Unknown Diagnostic Trouble Code"
2.) P0150—"O2 Sensor Circuit Bank 2 Sensor 1"
3.) P1668–"Unknown Diagnostic Trouble Code"
4.) P0462—"Fuel Level Sensor "A" Circuit Low"
5.) P0603—"Internal Control Module Keep Alive Memory (KAM) Error"
6.) P0560—"System Voltage"

Now I think the P0560 System voltage is just a bad battery—the battery has kept dying and I'm going to replace it anyways. I have googled around and think the P1590 is the ABS/three amigos thing which this vehicle does have. How do I get rid of that? Thinking about buying the Atlantic British Shuttle Valve switch to solve this...

As far as the rest of the codes 2,3,4,5 I have no idea how to handle—does anyone have any suggestions?

Other than these codes the vehicle seems to run great aside from maybe needing new brake pads soon.

Thanks y'all

 

You will need a more advanced code scanner to truly read the actual ABS faults. P1590 is a generic rough road fault and it will always be present when the SLABS unit has stored ABS faults from a bad ground, shuttle valve switch, or wheel sensor.

I’d replace the battery & make sure to fully clean the terminals and make sure they’re on tight. If you tried to crank it multiple times & it doesn’t start you’ll get the fuel fault sometimes especially if the fuel light is on. O2 sensor plug could be contaminated with oil/coolant & triggering a fault or the MAF could be reporting wrong info, or the O2 sensor is bad (could be any of those).

 

Battery and MAF connection.

 

Yeah so all of the codes cleared when I put a new battery in it.

Still have 3 amigos and apparently it's one of the wheel sensors...