Hi All,

Does anyone knows the AEM Twin Fire CDI Box Settings?

The box has three swicthes:

1. Switch 1 Multi-Strike Disable – S1 enables or disables multi-strike spark plug firings. Disabling Multistrike
(S1 – On) makes engine timing much easier to check. Enabling Multi-strike (S1 – Off, Default) makes the
engine run smoother at low speeds.

Mine is set to "Off".

2. Switch 2 Trigger Edge – S2 sets the input trigger edge that the Twin Fire uses to trigger the spark plug
firing. Rising edge (S2 - Off - Default) is used when the Twin Fire is wired in AFTER the ignitor (Ignition
Amplifier) or if the ignition did not have an external ignitor and there is not one inside the coils. Falling edge (S2
– On) is used when the Twin Fire is wired directly to the ECU and the Ignition trigger is a digital signal with high
signifying dwell time.

Mine is set to "On".

3. Switch 3 Wasted Spark – S3 programs the ignition for use on engines equipped with a single coil per
cylinder (720 firing S3 - On), or dual output coil feeding 2 cylinders (360 firing S3 - Off - Default).

Mine is set to "Off".

I am running 300m Coils as illustrated on the following drawing on stock ECU:

 

how did this work for you?

 

So far its been running great!

 

2 questions:

1) Why are you running S2 "On" when you have the Twin Power wired AFTER the ignitor on a stock ecu car?

2)Why are you running S3 "Off" when you have one coil per cylinder?

 

S2 = on is falling Edge Trigger as the stock ECU on the Evo.

S3 = off as the coils are wired in series. One physical coil per cylinder BUT, only two triggers.

 

Buenas.... Quisiera saber si puedo aplicar este esquema para un tercel 96 con bobina doble

 

@Didier chacon Hola Didier,
Deberá ponerse en contacto con AEM ya que no tenemos conocimiento del circuito de salida de encendido Tercel 96.