'89 Cadillac DeVille, just past 100K this month.
Out for a short drive last night. The Check Engine light flashed for a brief moment. Quick enough that had I not been looking at the dash at that moment, I wouldn't have seen the light even come on. On, Off in less than a snap of the finger.
Get to where I'm going, pull the OBD codes and it's Code 13 and 48; O2 Sensor and EGR, respectively. Clear codes, and no repeat of the incident.
Question which is it: Actual 02/EGR fault, the Catalytic Converter temporally acting up a little, or just a random gremlin in the diagnostics?
Out for a short drive last night. The Check Engine light flashed for a brief moment. Quick enough that had I not been looking at the dash at that moment, I wouldn't have seen the light even come on. On, Off in less than a snap of the finger.
Get to where I'm going, pull the OBD codes and it's Code 13 and 48; O2 Sensor and EGR, respectively. Clear codes, and no repeat of the incident.
Question which is it: Actual 02/EGR fault, the Catalytic Converter temporally acting up a little, or just a random gremlin in the diagnostics?