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P1157 Diagnostic Trouble Code Discussion for March 2013

Air Fuel Sensor (Bank 1 Sensor 1) AFS Line High Voltage


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Trouble Ticket Help Requests for DTC P1157
Help Request Posted
1999 Ford F-150 XL 4.2L Hesitation, MIL Lamp on VIN: 1FTZX1725X
P1157: oxygen sensor 22 indicates lean. Bank 2 upstream oxygen sensor never goes above 120mv bank 2 lean smoked intake and found intake gasket leak at rear of lower intake replaced gaskets and no change in oxygen sensor readings also short term fuel trim readings are positive 33on bank 2 and bank 1 ...
March 14, 2013
1999 Ford F-150 XL 4.2L Hesitation, MIL Lamp on VIN: 1FTZX1725X
P1157: oxygen sensor 22 indicates lean. Bank 2 upstream oxygen sensor never goes above 120mv bank 2 lean smoked intake and found intake gasket leak at rear of lower intake replaced gaskets and no change in oxygen sensor readings also short term fuel trim readings are positive 33on bank 2 and bank 1 ...
March 15, 2013
1999 Ford F-150 XL 4.2L Hesitation, MIL Lamp on VIN: 1FTZX1725X
P1157: oxygen sensor 22 indicates lean. Bank 2 upstream oxygen sensor never goes above 120mv bank 2 lean smoked intake and found intake gasket leak at rear of lower intake replaced gaskets and no change in oxygen sensor readings also short term fuel trim readings are positive 33on bank 2 and bank 1 ...
March 14, 2013
1999 Ford F-150 XL 4.2L Hesitation, MIL Lamp on VIN: 1FTZX1725X
P1157: oxygen sensor 22 indicates lean. Bank 2 upstream oxygen sensor never goes above 120mv bank 2 lean smoked intake and found intake gasket leak at rear of lower intake replaced gaskets and no change in oxygen sensor readings also short term fuel trim readings are positive 33on bank 2 and bank 1 ...
March 15, 2013