Other Category problem
2000 BMW 323 6 cyl Two Wheel Drive Automatic 120000 miles
My check engine light turned on and checking the computer showed Pcodes 1421 and 1422 saved which shows problem with secondary air system bank one (1421) and two (1422). What is the secondary air system and how do I fix this problem?
Saturday, January 12th, 2008 AT 9:55 AM