Generally fire problems come from Ck sensor or Cam sensor. Each should have one wire with 5-8 volts when ign is on. One wire that goes right to ground all the time and then the other is the trigger wire to check it you have to unhook the harness from the ECM and sensor and check that wire for continuity with an Ohm meter. They also need good grounds we like to run the ECM ground right to battery and then run a ground from the battery to a good engine ground.
Them darned suzuki's are different only one power wire and one return or signal wire no dedicated ground. Cks the same way. By the way when you turn the ign on is one wire each wire to your coils got 12+ volts.
Is your tip over switch right side up?
sensors don't go bad often but we take a known good ones with us to speed up that part of the check,
The other problem is the problem is usually so simple and darned right stupid you guys never come back and tell us.
My Daddy told me "It doesn't matter if you Fcrew up or not but it does matter how fast you can fix that Fcrew up".
Honest Dad himself
