Bosch 021

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Bosch 021 electronic Ignition module (ignitor) is small and readily available. It allows for a high energy module conversion. It is typically used with a Pertronix points-replacement conversion kit -- the Pertonix Ignitor is not high energy. Think of the Bosch 021 as a high-power relay for low-energy ignition sensors. Or use it with a stock Datsun/Nissan electronic ignition distributor if the factory ignitor is missing or damaged. It is practically the same as GM HEI.

This ICM works with Datsun and Nissan reluctance (EI) distributors. However if you already have the stock Nissan EI unit, it's even more reliable than the Bosch unit -- so use it.

Sources

Australia-produced vehicles
* 1983-1984 Series 2 Bluebird EI

ICM

BIM024 (021) module used by 1977-1996 various model engines. These modules are said to fail frequently.

• Number on Ignition Module: 9222 067 021
• Ignition Module as a retail boxed item: 9222 067 024 or BIM024

Bosch 9222067021 691 D (terminals marked 3, 7, 15, 16)
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Wiring

Wiring Diagram for reluctance-type electronic distributor

Terminal
 3 distributor
 7 distributor
15 12V
16 Coil Negative
Case ground/earth

Wiring with the Datsun wire colors (example: D4F "Remote Ignitor")

Coil

It is recommended to use a high-energy coil. The standard 12V low energy coil may be used if you retain the ballast resistor

See Main Article: EI Coil

• remove ballast resistor and use 12V high energy coil (like the Bluebird EI coil). The High-Energy is in the coil. The ignitor only needs to handle enough current to power the coil.

OR

• keep the ballast resistor and use 12V low energy coil (like standard 1200 coil)

Either one will work with the Bosch module