Intermittent check engine light - P0351 code - Scion Xd

Question

get code P0351 (ignition coil - primary/secondary circuit) on a 2009 Scion Xd, check engine light comes on intermittently, but no symptoms of any engine trouble... ideas of what may be causing the check engine light to come on?

Answer 1

P0351 Ignition coil "A" primary / secondary circuit

This is a intermittent connection code, Replace the connection at the coils, this condition  check to make sure the connection are properly seated.