Category Archives: OBD OBDII Error Codes

OBD OBDII Error Codes

How To Fix a P0171 OBDII Error Code

System Too Lean (Bank 1)   Below is the basic causes and common fixes for a P0171 OBDII error code. What Is a P0171 Error Code? A P0171 code indicates there is a fuel/air mixture problem on bank 1 of the engine. The term Lean means the cylinder is receiving too much or too little air creating a… Read More »