Engine Performance problem
1999 Toyota Corolla 4 cyl Two Wheel Drive Manual 183000 miles
My check engine light came on the 1st time, reason was the 02 sensors were burned out. Replaced them ($400 incl. Labor). Then, 2 weeks later, check engine light came on. The reason this time: reading was a P0420, catalyst below threshold, bank 1. Mechanic suggested that I change oxygen sensors, perhaps the cables, too. I decided to wait. 2 days later, the check engine light turned off. Is there any rhyme or reason to this?
have the same problem?
Monday, November 10th, 2008 AT 9:56 AM