P1157 Diagnostic Trouble Code Discussion for March 2013
Air Fuel Sensor (Bank 1 Sensor 1) AFS Line High Voltage
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| 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 |
