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P1128 Diagnostic Trouble Code Discussion for March 2006

Closed Loop Fueling Not Achieved - Bank 1


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Trouble Ticket Help Requests for DTC P1128
Help Request Posted
1999 Volkswagen Beetle GL 2.0L Hesitation, Cuts out VIN: 3VWBA21CXX
P1128: lean bank one. This vehicle runs great after it has run for a couple of kilometers. When you first start up cold (below 5 degrees c.) the engine starts fine but if you take off on the road right away and attempt a medium to heavy acceleration the engine falls flat on its fac...
March 02, 2006
2000 Volkswagen Beetle GLS 2.0L Hesitation VIN: 3VWCC21C8Y
P1128: lean. after above repairs car runs bad on initial cold start,somewhat better when warm but still stumbles like it is lean
March 29, 2006
1999 Volkswagen Beetle GL 2.0L Hesitation, Cuts out VIN: 3VWBA21CXX
P1128: lean bank one. This vehicle runs great after it has run for a couple of kilometers. When you first start up cold (below 5 degrees c.) the engine starts fine but if you take off on the road right away and attempt a medium to heavy acceleration the engine falls flat on its fac...
March 02, 2006
2000 Volkswagen Beetle GLS 2.0L Hesitation VIN: 3VWCC21C8Y
P1128: lean. after above repairs car runs bad on initial cold start,somewhat better when warm but still stumbles like it is lean
March 29, 2006