AEM Twin Power settings on 300m coils and stock ECU
#1
Thread Starter
iTrader: (27)
AEM Twin Power settings on 300m coils and stock ECU
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:
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:
#4
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?
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?
#6
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:
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:
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