According to my independent mechanic, error code P1399 is undocumented -- and of course my Civic has it. Does anyone know what the code means? Thanks -- RB
Enter the code at this site: http://www.iequus.com/3100.asp?CatShort=CodeDef It says it is a random/multiple cylinder misfire......
it's not a valid code on a 2000 civic. sure it wasn't a p9999? that was a quirk in software on the si that actually meant p0420 catalyst deterioration. could be a crappy code reader. Chip
Thanks all -- I took the car into a Honda dealer. Their made-for-Honda code reader did not report this error code. So it would appear that the general purpose code reader gave a bad result. RB