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[Datsun 1200 encyclopedia]

Bosch 021

From Datsun 1200 Club

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Category: Engine Electrical System

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 Pertronix 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.

Contents

Overview

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.

AutoSpeed article: Ignition Upgrade

Sources

Australia-produced vehicles
* Nissan 1983-1984 Series 2 Bluebird EI
* Ford ADY 17
  F100/F350/Bronco.4WD 4.1, 5.8 1981-1985
  Cortina TF 6 cylinder 1977-1980
  Fairlane ZJ, ZK and ZL 6 and 8 cylinders
  Falcon/Fairmont XD, XE, XF 6 and 8 cylinders
  Telstar AS 4 cylinder
* Holden VS 162 56
  Commodore/Calais VC, VH, VK 6 and 8 cylinders
  Commodore/Calais VL 8 cylinder
  Nova LE 4 cylinder
* Mitsubishi AW307763
  Sigma GK, GN
  Magna/Verada TM, TN, TP, TR, TS
* Toyota Corolla E8, E9
US
* Ford
* Nissan
* VW

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)
7952_4d40ced1a7f38.jpgUpload click to view

Replaces Bosch
9-222-067-016 (9222067016)
9-222-067-017 (9222067017)
9-222-067-021 (9222067021)
9-222-067-024 (9222067024)
FEATURES
MAGNETIC PICK-UP SYSTEM 
DWELL CONTROLLED BY MODULE 
TRANSIENT PROTECTION ON ALL PINS

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. However 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 

¤

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