93' Sidekick 1.6 16v engine, no spark :(

[fixkick]

https://files.fm/f/z569h6xnva this is the engine

so you bought it Frankensammi like this 
then it fails out of the blue? was not dead bought .
93 16v.  


or did it your self , all that custom wiring.? (my guess is you do not know how it got like this) right?  (the franken part is that)

one way to fix it, is start at the DIZZY wiring, and 93 only, if is. 93 DIzzy  there.
with the  diszzy cap off.  the rotor turns CCW cranked, counter clock wise on all 16v.

vast G16B engines the cam  belt is slipped or snapped. 60,000 miles and bingo, snapped.


so off the cap, 93 Dizzy,  it has its own coil on the firewall and ignitor too and  a lost? supressor? thumb sized?
the coil pack on the fire wall is checked for spark first,  if dead we work back a from there,  


we crank the engine and the rotor spins does it.? CCW



then at TDC 0deg, #1 firing the rotor tipo  aligns with  cap #1 spark HV wire.

if not came belt slipped or the dizzy installed all wrong

ok still no spark at coil.
first see my horsed up 15v spark page



https://fixkick.com/ECU/92-95MPI-eng-sch...e-huge.png

see the 3 DIZZY wire (low voltage connector)
1 is ground ,
1 is power 12vdc from main relay and fuse 24 not blown.(FI FUSE MARKED) IG-coil  fuse not blown or coil is dead.
1 is ECU signal, from DIZZY CMP to ECU  to makes spark

the CMP signal is just a square wave,  and easy to see on any analog DC, needle meter. the needle jumps as you crank
from 0v to 5v to 0v and repeats as you crank if not , the 12vdc is not present on the dizzy key on.
now lets say CMP does work
the ECU sees it toggle and now generates spark using the IGNITOR ( a huge transistor in a cube)
the ECU charges the coil fully primary and releases it and makes spark at the coil directly
ecu pin A14 does that
if the supressor module, is missing all fueling ends and the cluster tachometer is now dead too

that is it for spark.  coil HV dead. just 3 tests to find cause.
CMP dead at B3
A4 dead?
A8 not dead
coil plus lug not dead, 12vdc is correct
coil minus must pulse or IGNITOR IS DEAD.

in this order tested.

the CMP sensor must work. there is no CKP to fail here. CKP is 1996 up.
this is the CMP firing on mine.  0v ,5v repeats as I crank. if dead the cam belt snapped is the #1 cause on all G16 to die. #1


my scope now 50 years old still works. 1974 model.. 100MHz it is. I calibrated mine my hand.
a needle meter works here too. the signals are very slow. that why it works.
this is my oldest scope I have 2 others even one new.

the COIL Minus pin or Igniter to the coil Below

the low signal (0V)  is dwell coil charge time, and then released just after my word fire. , the huge  spike is EMF induction,(primary)
if this is dead, we must check igniter base pin next, if dead there, back to the Ecu WE GO




on any FrankenKicks the grounds are always suspected, and snapped timing belt.