My 1997 Tahoe is overheating. I have replaced the radiator, water pump, thermostat, and fan, but it is still overheating. It is also smoking like crazy out of the tail pipe. I hooked it up to a OBD 2 scanner and it threw these codes out:
MAF/VAF A circuit low input P0102
Close loop fuel control insufficient coolant temp P0125
O2 sensor heater circuit malfunction Bank 2 sensor 1 P0155
Enging coolant circuit low input P0117
What do I need to do to get this thing running right?