CA18DE Ignitor

Use MegaSquirt 2.0 to control the CA ignitor. MegsSquirt 3 can directly drive COP, but by using the ignitor it will work with MegaSquirt 2.

22020-85M10 TRANSISTOR IGNITION UNIT Mitsubishi
* USA 1987-1988 KN13 USA "Sentra XE" CA16DE/CA18DE
* 1988 N13 Pulsar NX CA18DE
* early Q45 V8 c. 1990
22020-60U00 TRANSISTOR IGNITION UNIT Hitachi

One plug has 5-wires -- 4 inputs low current triggers. The odd pin is for ground/earth. Connect two to Megasquirt:IGN1 and two to Megasquirt:IGN2.

The other plug has 4 high current outputs to the four coils.

Ignition Control Module (ICM)
* Nissan 22020-85M10
* STANDARD MOTOR PRODUCTS LX645
* BECK/ARNLEY 1800180
* ACDELCO E1985A
* AIRTEX/WELLS 6H1129

TunerStudio settings

Trigger on rising edge?
Trigger on falling edge?
Output: logic level
Type: wasted spark

SR20DET Ignitor

The SR unit is smaller, newer but works the same way.

22020-50F00 'DIS4 04'

Input Trigger

Input trigger: coil negative terminal with normal point or electronic distributor.

With Nissan 360° CAS, use MegaSquirt 3 with 1.3.3 software. This includes CA18DE/DET CAS or the D4P distributor but modified to fit in A-series engine. MegaSquirt 2 will work if you swap the trigger wheel for a 22-1 wheel from DIYautoTune.

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