× Auto Repair Pros Member Benefits TechHelp Knowledge Base Forums Resources My iATN Marketplace Chat Pricing About Us Join Industry Sponsors Video Members Only Repair Shops Auto Pro Careers Auto Pro Reviews
Join Now
International Automotive Technicians Network
P0171
Posted to Technical Discussion Forum on 1/5/2019 21 Replies

The condition is both banks run lean through the entire range but bank one fuel trims are slightly higher. Freeze frame has b1 at 25 and b2 at 15 and code sets at idle. This is more a question of theory but would appreciate advice as well. The vehicle has no m... Login to read more.

21 Replies Received (View Replies)

 

car Vehicle Data

2008 BMW 535i 3.0L

Engine3.0 L
Trans6-speed Automatic (Electronic)

car Vehicle Data

2008 BMW 535i 3.0L

Engine3.0 L
Trans6-speed Automatic (Electronic)