when starting 5.0 1993 cougar xr7,engine light flashes 5 times,engine idle 1800 on 1993 Mercury Cougar

when starting 5.0 ,engine light flashes 5 times in about 7-8 seconds,idle at 1800 rpm,about 1 min,engine rpm drops to 750-800.1 code i recored said 121?

by in Picayune, MS on July 15, 2014
0 answers