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P1143 Diagnostic Trouble Code Discussion for June 2006

Heated Oxygen Sensor (Bank 1 Sensor 1) Lean Shift Monitoring

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Trouble Ticket Help Requests for DTC P1143
Help Request Posted
2002 Volkswagen Jetta GLS 2.0L Surge, MIL Lamp on VIN: 3VWSK69M62
P1143: Load Calculation Cross Check. The car came back in with another bunch of seemingly random codes, and the throttle body unit had lost it's adaptation. I can reset the adaptation, clear codes and drive this car for DAYS with no problem, then the customer will pick it up and not get 3 miles a...
June 21, 2006