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P1128 Diagnostic Trouble Code Discussion for July 2006

Closed Loop Fueling Not Achieved - Bank 1

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Trouble Ticket Help Requests for DTC P1128
Help Request Posted
1998 Volkswagen Beetle 2.0L Hesitation, Surge VIN: 3VWBB61C7W
P1128: lean condition. This car idles fine but will not accalerate unless you feather the throttle. IF you stomp on the throttle it leans out badly and missfires. weve checked tps maf coolant temp intake air temp O2's and checked for plugged exhaust. You can get it to run fine if yo...
July 12, 2006