AutoMD ... 12/11/2013
2003 Buick LeSabre Limited 6 Cyl 3.80L
Check Engine Light On - Code says Cylinder 1 is running lean
Using more fuel than normal, but runs ok
Are you certain the code pertains to a single cylinder - rather than bank #1 - running too lean? The lean condition may be caused by any of the following conditions; faulty fuel injector, low fuel pressure, faulty fuel pump, cloged fuel supply or rail.