03-01-2018, 09:28 AM
ok, is the distributor grounded"? pin 4
pin 7 power pin 12v
then the ignitor can fire.
if it charges with 3 volt on the gate (battery pack 2 AA cells) then the ignitor works and the coil,
then you release the 3v and the coil fires with 15,000 volts use a spark plug there, not and open circuit or you invite 15,000 volts back to the MS.
the if that works try the MS,
working with no scope makes this very hard.
but if you can , tell the MS to fire the coil 1 time (spin the CMP or CKP , not sure what you use to fire the MS,but make one turn of the CMP or CKP) then you see the coil charge then release.
one can see that even with a DMM on pin5 red, and black meter to ground.
that is 100% correct the extra ignitor is on more buffer protecting the MS. for sure. but needs the MS inverted, (you have 2 inverting buffers now) so invert the MS end or burn the coil up you will.
that is why I use a dummy load for a coil to make sure all is perfect, then blow up the coil, LOL!!!!!
make sure the distributor body is well grounded, or bad things can happen with 15,000 volts with no place to go but to a very bad place.
10 years ago i scoped this pin , i forgot
see the hand drawn wave at the bottom of my photo.
its 12v pulse i this car (I had 2 , 97/97 cars) and a nice scope, so drew that long ago.
note the inductive back kick (EMF) the suppressor may help the coil RING, IDK. sorry.
see bottom center.
http://www.fixkick.com/ECU/1996/EFI1.jpg
pin 7 power pin 12v
then the ignitor can fire.
if it charges with 3 volt on the gate (battery pack 2 AA cells) then the ignitor works and the coil,
then you release the 3v and the coil fires with 15,000 volts use a spark plug there, not and open circuit or you invite 15,000 volts back to the MS.
the if that works try the MS,
working with no scope makes this very hard.
but if you can , tell the MS to fire the coil 1 time (spin the CMP or CKP , not sure what you use to fire the MS,but make one turn of the CMP or CKP) then you see the coil charge then release.
one can see that even with a DMM on pin5 red, and black meter to ground.
that is 100% correct the extra ignitor is on more buffer protecting the MS. for sure. but needs the MS inverted, (you have 2 inverting buffers now) so invert the MS end or burn the coil up you will.
that is why I use a dummy load for a coil to make sure all is perfect, then blow up the coil, LOL!!!!!
make sure the distributor body is well grounded, or bad things can happen with 15,000 volts with no place to go but to a very bad place.
10 years ago i scoped this pin , i forgot
see the hand drawn wave at the bottom of my photo.
its 12v pulse i this car (I had 2 , 97/97 cars) and a nice scope, so drew that long ago.
note the inductive back kick (EMF) the suppressor may help the coil RING, IDK. sorry.
see bottom center.
http://www.fixkick.com/ECU/1996/EFI1.jpg
http://www.fixkick.com