"A" Camshaft Position - Timing Over-Advanced or System Performance (Bank 1)
symptoms
Hard starting, bad idle and possibly stalling issues
caused by
Incorrect camshaft timing
Wiring issues (harness/wiring) in intake timing control valve control solenoid system
Steady oil flow to VCT piston chamber
Faulty timing valve control solenoid (stuck open)
the fix
This code indicated a mechanical issue, electrical troubleshooting wont help so replacement of the VCT or one of it's related components is necessary.
Trouble code P0011 means: "A" Camshaft position-timing over-advanced (bank 1)
what is fault code P0102 in a Chevy Tahoe?
On my 1999, I'm pretty sure the cam and the crank sensor will generate the same fault code. For the price of the sensors, I'd just change both. Eliminate any doubt about which one is at fault.
inefficient catalyst
Left front tire pressure monitor fault signal.
catalyst system fault
Igniton System or Misfire
SYSTEM TO RICH ( bank 2 ) That is the code.
Trouble code P0304 means: Cylinder 4 Misfire Detected
Trouble code P0170 means: Fuel Trim (Bank 1)
Trouble code P0171 means:System too lean (Bank 1)
Trouble code P0174 means: System too lean (Bank 2)
Trouble code P0446 means: EVAP Vent System Performance