1993 Toyota 4runner v6 3.0 multiple codes...

I have a 1993 Toyota 4runner v6 3.0 2nd generation. It idles high at 1000 and when I put it in drive or reverse it stalls out. In idle the radiator over flow will blow steam within minutes but it won't over heat. Thermostat is good and no catalytic converter. Had to cut it out last night because it was clogged. Was told that would help but it has made no changes. The codes are
14, ignition reference signal no signal.
22 engine coolant temp sensor circuit.
24 intake air temp sensor.
25 mixture control constantly lean.
31 volume air flow sensor.
I have no idea where to go from here. Any help is greatly appreciated.

 

Could be a few things. Have you block tested it to make sure there isn't a blown headgasket? Recently had a timing belt done? TPS sensors were known to fail..