Hey guys,
new guy here. Enjoying my recently acquired Pewter '99 BRC to the max with one exception: The light circuit seems to 'oscillate' above 800 rpm. I haven't had a chance to do a load test yet, but the battery is remaining strong. Didn't see any electronic TSB's listed for that year.
Anyone else run across something similar?
Tx,
Mike

http://www.sspmustang.org/images/Mikes_B4C_3.JPG
http://www.sspmustang.org/images/Mikes_B4C_4.JPG

 

No, I've never had this nor heard of the problem specific to our cars, though sounds like a typical minor wiring problem. Is it all the lights on the dash pulsing with rpm?