Join Now
International Automotive Technicians Network

P0471 Diagnostic Trouble Code Discussion for September 2010

Exhaust Backpressure Circuit Range/Performance


Note: This is a professional automotive technician's resource.
Vehicle Owners: If you are seeking an automotive repair professional to service your vehicle, visit the iATN Repair Shop Finder.

Trouble Ticket Help Requests for DTC P0471
Help Request Posted
2000 Ford Expedition XLT 5.4L Surge VIN: 1FMRU15L0Y
P0471: lean bank 2 sensor 1. Everything we have done has progressivly made the truck run better, I am just baffled that when I watch the o2 on the scanner under full throttle accel the o2 drops to lean but the other one goes to full rich like its supposed to, i also think under full throt...
September 21, 2010
2000 Ford Expedition XLT 5.4L Surge VIN: 1FMRU15L0Y
P0471: lean bank 2 sensor 1. Everything we have done has progressivly made the truck run better, I am just baffled that when I watch the o2 on the scanner under full throttle accel the o2 drops to lean but the other one goes to full rich like its supposed to, i also think under full throt...
September 21, 2010