Here are some answers for you:
1) Yes, they should be the same thing. The Toyota ECUs from those years do not actually drive the coil, they just send a signal to the igniter that then drives the coil.
2) You can cross-reference part numbers at your local toyota dealer or autoparts store to see what igniters are interchangeable.
3) The spark and fuel systems are almost totally unrelated. But... the ECU recieves a feedback signal from the igniter module to verify that the motor is getting spark - if the ECU does not recieve the signal back, it cuts fuel to the motor and shuts it off. I would check your coil resistances and other parts of your ignition system before blaming the igniter. If the igniter turns out to be the problem, pick one up from a local junkyard since a new one will run you over $100.
-Charlie
1) Yes, they should be the same thing. The Toyota ECUs from those years do not actually drive the coil, they just send a signal to the igniter that then drives the coil.
2) You can cross-reference part numbers at your local toyota dealer or autoparts store to see what igniters are interchangeable.
3) The spark and fuel systems are almost totally unrelated. But... the ECU recieves a feedback signal from the igniter module to verify that the motor is getting spark - if the ECU does not recieve the signal back, it cuts fuel to the motor and shuts it off. I would check your coil resistances and other parts of your ignition system before blaming the igniter. If the igniter turns out to be the problem, pick one up from a local junkyard since a new one will run you over $100.
-Charlie
