Join Now
International Automotive Technicians Network

P1128 Diagnostic Trouble Code Discussion for October 2010

Closed Loop Fueling Not Achieved - Bank 1


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 P1128
Help Request Posted
2000 Porsche Boxster Roadster 2.7L MIL Lamp on VIN: WP0CA2988Y
P1128: oxygen sensing range 1-3. this vehicle has codes p1128 and p1130 which from what i gather are lean codes (?). but my fuel trim at idle suggests more of a rich concern. are these normal readings at idle for this motor? (when hitting the throttle the fuel trim readings head back toward n...
October 18, 2010
2000 Porsche Boxster Roadster 2.7L MIL Lamp on VIN: WP0CA2988Y
P1128: oxygen sensing range 1-3. this vehicle has codes p1128 and p1130 which from what i gather are lean codes (?). but my fuel trim at idle suggests more of a rich concern. are these normal readings at idle for this motor? (when hitting the throttle the fuel trim readings head back toward n...
October 19, 2010
2000 Porsche Boxster Roadster 2.7L MIL Lamp on VIN: WP0CA2988Y
P1128: oxygen sensing range 1-3. this vehicle has codes p1128 and p1130 which from what i gather are lean codes (?). but my fuel trim at idle suggests more of a rich concern. are these normal readings at idle for this motor? (when hitting the throttle the fuel trim readings head back toward n...
October 18, 2010
2000 Porsche Boxster Roadster 2.7L MIL Lamp on VIN: WP0CA2988Y
P1128: oxygen sensing range 1-3. this vehicle has codes p1128 and p1130 which from what i gather are lean codes (?). but my fuel trim at idle suggests more of a rich concern. are these normal readings at idle for this motor? (when hitting the throttle the fuel trim readings head back toward n...
October 19, 2010