Trouble Ticket Help Requests for DTC P0170
|2001 Volkswagen Beetle GLX 1.8L MIL Lamp on VIN: 3VWDD21C31
P0170: Fuel trim bank 1. We have performed aging tests of oxygen sensors, B1S1 fails, B1S2 passes. The Lambda reading at 1.2-1.4v at idle is our question. What should Lambda reading be at idle? Like I said, we have read the posts & can see that there are several items that may cau...
|May 01, 2012|