Mercury Grand Marquis P0057: Meaning + Causes

P0057 is a generic trouble code, which means that it has the same definition for the Mercury Grand Marquis as it would any other vehicle. It indicates that the O2 sensor at bank 2 sensor 2 has a heated element that is sending a signal back to the ECM that is below its normal operating … Read more

Mercury Grand Marquis P0037: Meaning + Causes

P0037 is a generic trouble code, which means that it has the same definition for the Mercury Grand Marquis as it would any other vehicle. It indicates that the O2 sensor at bank 1 sensor 2 has a heated element that is sending a signal back to the ECM that is below its normal operating … Read more