BMW 'Check Engine' Fault Cleared
In a previous post, I described a repair I made on my 1998 BMW 323is involving the replacement of the secondary air pump. The pump failure was accompanied by the triggering of a 'check engine' fault which has been on for far too long (over a year...). I became worried when the 'check engine' light remained active after replacing the pump. I verified that the pump did in fact work, so it wasn't a major concern.
Fortunately, the check engine light became inactive on January 15. I had replaced the pump on December 22, which means that it took about 3.5 weeks for the diagnostic system to give the "okay" to the newly-installed pump. I had hoped that the fault would be cleared automatically so as to avoid paying $30+ for a mechanic to use a blessed tool to clear the fault.