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P1131 Diagnostic Trouble Code Discussion for August 2006

Heated Oxygen Sensor (Bank 1 Sensor 1) Indicates A/F Ratio Too Lean

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Trouble Ticket Help Requests for DTC P1131
Help Request Posted
1998 Mercury Mystique GS 2.0L No Start VIN: 1MEFM6537W
P1131: lack of h2os sensor responce lean. vehical was towed in for no start got it in the door and checked spark, fuel pressure,compression, replaced plugs b/c they were wet have rpm referance on scan tool i looked in repair trac on the mac mentor it has a spot that reads about possible broken flexpla...
August 14, 2006