PO171 & PO174 on 2001 BMW 330i

What causes those code to trigger? PO171 & PO174. Thanks all

by in Mesa, AZ on March 10, 2010
2 answers
ANSWER by on March 10, 2010
Crankcase Breather Leaking Exhaust System Dirty Fuel Injectors Restricted Fuel Injectors Insufficient Fuel Pressure Leaking Intake Manifold Defective Mass Air Flow (MAF) Sensor
ANSWER by on March 10, 2010
Hi, you can find out about the p0171 and p0174 dtc's here: http://repairpal.com/OBD-II-Code-P0171-and-P0174

Related Content