P1277 Mercury Cylinder #7 High To Low Side Open
Possible causes
Symptoms
– Engine Light ON (or Service Engine Soon Warning Light)
P1277 Mercury Description
Indicates a high voltage condition exists at the injector output of the NG module for cylinder No. 7 when low voltage is expected.
Mercury Vehicle:Mercury Grand Marquis,Mercury Mariner,Mercury Milan,Mercury Mountaineer,Mercury Sable,