Lincoln MKS P1131:  Causes + Diagnosis

P1131 is a diagnostic trouble code that applies to vehicles manufactured by Ford, including the MKS. Trouble codes that start with P1XXX were reserved for manufacturers. This code occurs when the upstream O2 sensor on bank 1 fails a diagnostic test twice in a row. P1131 Quick Facts DTC P1131 is usually caused by a … Read more

Lincoln MKX P1131:  Causes + Diagnosis

P1131 is a diagnostic trouble code that applies to vehicles manufactured by Ford, including the MKX. Trouble codes that start with P1XXX were reserved for manufacturers. This code occurs when the upstream O2 sensor on bank 1 fails a diagnostic test twice in a row. P1131 Quick Facts DTC P1131 is usually caused by a … Read more

Mercury Grand Marquis P1131:  Causes + Diagnosis

P1131 is a diagnostic trouble code that applies to vehicles manufactured by Ford, including the Grand Marquis. Trouble codes that start with P1XXX were reserved for manufacturers. This code occurs when the upstream O2 sensor on bank 1 fails a diagnostic test twice in a row. P1131 Quick Facts DTC P1131 is usually caused by … Read more

Mercury Mariner P1131:  Causes + Diagnosis

P1131 is a diagnostic trouble code that applies to vehicles manufactured by Ford, including the Mariner. Trouble codes that start with P1XXX were reserved for manufacturers. This code occurs when the upstream O2 sensor on bank 1 fails a diagnostic test twice in a row. P1131 Quick Facts DTC P1131 is usually caused by a … Read more

Mercury Milan P1131:  Causes + Diagnosis

P1131 is a diagnostic trouble code that applies to vehicles manufactured by Ford, including the Milan. Trouble codes that start with P1XXX were reserved for manufacturers. This code occurs when the upstream O2 sensor on bank 1 fails a diagnostic test twice in a row. P1131 Quick Facts DTC P1131 is usually caused by a … Read more

Mercury Montego P1131:  Causes + Diagnosis

P1131 is a diagnostic trouble code that applies to vehicles manufactured by Ford, including the Montego. Trouble codes that start with P1XXX were reserved for manufacturers. This code occurs when the upstream O2 sensor on bank 1 fails a diagnostic test twice in a row. P1131 Quick Facts DTC P1131 is usually caused by a … Read more

Mercury Monterey P1131:  Causes + Diagnosis

P1131 is a diagnostic trouble code that applies to vehicles manufactured by Ford, including the Monterey. Trouble codes that start with P1XXX were reserved for manufacturers. This code occurs when the upstream O2 sensor on bank 1 fails a diagnostic test twice in a row. P1131 Quick Facts DTC P1131 is usually caused by a … Read more

Mercury Mountaineer P1131:  Causes + Diagnosis

P1131 is a diagnostic trouble code that applies to vehicles manufactured by Ford, including the Mountaineer. Trouble codes that start with P1XXX were reserved for manufacturers. This code occurs when the upstream O2 sensor on bank 1 fails a diagnostic test twice in a row. P1131 Quick Facts DTC P1131 is usually caused by a … Read more

Mercury Sable P1131:  Causes + Diagnosis

P1131 is a diagnostic trouble code that applies to vehicles manufactured by Ford, including the Sable. Trouble codes that start with P1XXX were reserved for manufacturers. This code occurs when the upstream O2 sensor on bank 1 fails a diagnostic test twice in a row. P1131 Quick Facts DTC P1131 is usually caused by a … Read more

Mercury Villager P1131:  Causes + Diagnosis

P1131 is a diagnostic trouble code that applies to vehicles manufactured by Ford, including the Villager. Trouble codes that start with P1XXX were reserved for manufacturers. This code occurs when the upstream O2 sensor on bank 1 fails a diagnostic test twice in a row. P1131 Quick Facts DTC P1131 is usually caused by a … Read more