[s-cars] bob at chips-ur-s.com

[Craig Lebakken]

Yeah, exactly what I tried to say!

Thanks for the clarification Bob.

Craig

>>>>>>>>>>>
Craig,

Coil failures are, IME, more gradual.  They just start to weaken and
progress, eventually, to the "He's dead, Jim" stage.  In the early
stages a miss develops at fairly high boost levels.  As the coil
continues to weaken the missing happens at lower and lower MAP levels
until, eventually it becomes a full-time miss.  At this point it
mimics a failed POS.

The knock sensors signal the ECU to instantly dial back the timing
advance and result is an instant decrease of power.  There is nothing
slow about it.

Bob