What causes those code to trigger? PO171 & PO174. Thanks all
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Ask Your Question2001 BMW 330i
Question: PO171 & PO174
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JourneymanCrankcase Breather
Leaking Exhaust System
Dirty Fuel Injectors
Restricted Fuel Injectors
Insufficient Fuel Pressure
Leaking Intake Manifold
Defective Mass Air Flow (MAF) SensorFlag ThisLike | 3 people like this3 -
Answer #2
Bret Bodas from RepairPal Test Shop, March 10, 2010, 12:20ReplyMasterHi, you can find out about the p0171 and p0174 dtc's here: http://repairpal.com/OBD-II-Code-P0171-and-P0174
Flag ThisLike | 3 people like this3
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