This means that the Oxygen sensor #1 on bank one went lean and stayed lean for longer than allowed.
Look for in this order:
which sensor is for bank 1 sensor 1 on a 2006 nissan xterra
Trouble code P0131 means:O2 sensor circuit low voltage (Bank 1 Sensor 1)
Trouble code P0131 means:O2 sensor circuit low voltage (Bank 1 Sensor 1)
Trouble code P0446 means: EVAP Vent System Performance
Trouble code P1870 means: Transaxle Component Slipping (4T60-E)
They probably mean a Chevy Tahoe. It is the name of a vehicle, and specifically an SUV.
That code means that the computer system checks NORMAL. Unless there is other codes present after it flashes code 12 It will always flash code 12 FIRST.
Left Front Speed Signal Missing - possibly ABS related - will research more
Trouble code P0758 means: A/T 2-3 Shift Solenoid Circuit Malfunction (4L60-E, 4L80-E)
do you mean it cranks, but will not start?
I'm also having the same issue on my 2005 Chevy Tahoe. The local Chevy dealership stated the error code is a result of a failed front crash sensor. In my case it was Sensor #2. The cost of the sensor is $125 w/ a $100 installation fee.
It means you should add oil.