07-15-2016, 12:02 AM
at HV tower post.(ign coil)
if intermittent, it can be on the ignitor side (lots of ways)
or the cmp is bad. (signal bad for many reasons)
only scope finds this easy, at CMp and at ignitor pins.
trusting the ECU to tell you may fail. 41s only means spark is bad at ignitor. but could be a bad CMP if the ECU is that dumb to report spark bad, and not tell you, oh btw the cmp is dead. code 42
some may do that. seen it on other cars.
if intermittent, it can be on the ignitor side (lots of ways)
or the cmp is bad. (signal bad for many reasons)
only scope finds this easy, at CMp and at ignitor pins.
trusting the ECU to tell you may fail. 41s only means spark is bad at ignitor. but could be a bad CMP if the ECU is that dumb to report spark bad, and not tell you, oh btw the cmp is dead. code 42
some may do that. seen it on other cars.
http://www.fixkick.com